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      "url": "https://www.w3.org/TR/CSS21/about.html#css2.1-v-css2"
    }
  },
  "/about#css2.2-v-css2": {
    "current": {
      "number": "1.1",
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      "url": "https://drafts.csswg.org/css2/about.html#css2.2-v-css2"
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  },
  "/about#doc-language": {
    "current": {
      "number": "1.4.1",
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      "text": "Document language elements and attributes",
      "url": "https://drafts.csswg.org/css2/about.html#doc-language"
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    "snapshot": {
      "number": "1.4.1",
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      "text": "Document language elements and attributes",
      "url": "https://www.w3.org/TR/CSS21/about.html#doc-language"
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  "/about#images-and-longdesc": {
    "current": {
      "number": "1.4.5",
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      "text": "Images and long descriptions",
      "url": "https://drafts.csswg.org/css2/about.html#images-and-longdesc"
    },
    "snapshot": {
      "number": "1.4.5",
      "spec": "CSS 2.1",
      "text": "Images and long descriptions",
      "url": "https://www.w3.org/TR/CSS21/about.html#images-and-longdesc"
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  "/about#inherited-prop": {
    "current": {
      "number": "1.4.2.4",
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      "url": "https://drafts.csswg.org/css2/about.html#inherited-prop"
    },
    "snapshot": {
      "number": "1.4.2.4",
      "spec": "CSS 2.1",
      "text": "Inherited",
      "url": "https://www.w3.org/TR/CSS21/about.html#inherited-prop"
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  },
  "/about#initial-value": {
    "current": {
      "number": "1.4.2.2",
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      "url": "https://drafts.csswg.org/css2/about.html#initial-value"
    },
    "snapshot": {
      "number": "1.4.2.2",
      "spec": "CSS 2.1",
      "text": "Initial",
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  "/about#media-applies": {
    "current": {
      "number": "1.4.2.6",
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      "text": "Media groups",
      "url": "https://drafts.csswg.org/css2/about.html#media-applies"
    },
    "snapshot": {
      "number": "1.4.2.6",
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      "text": "Media groups",
      "url": "https://www.w3.org/TR/CSS21/about.html#media-applies"
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  "/about#notes-and-examples": {
    "current": {
      "number": "1.4.4",
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      "text": "Notes and examples",
      "url": "https://drafts.csswg.org/css2/about.html#notes-and-examples"
    },
    "snapshot": {
      "number": "1.4.4",
      "spec": "CSS 2.1",
      "text": "Notes and examples",
      "url": "https://www.w3.org/TR/CSS21/about.html#notes-and-examples"
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  "/about#organization": {
    "current": {
      "number": "1.3",
      "spec": "CSS 2.1",
      "text": "How the specification is organized",
      "url": "https://drafts.csswg.org/css2/about.html#organization"
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    "snapshot": {
      "number": "1.3",
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      "text": "How the specification is organized",
      "url": "https://www.w3.org/TR/CSS21/about.html#organization"
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  "/about#percentage-wrt": {
    "current": {
      "number": "1.4.2.5",
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      "text": "Percentage values",
      "url": "https://drafts.csswg.org/css2/about.html#percentage-wrt"
    },
    "snapshot": {
      "number": "1.4.2.5",
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      "text": "Percentage values",
      "url": "https://www.w3.org/TR/CSS21/about.html#percentage-wrt"
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  },
  "/about#property-defs": {
    "current": {
      "number": "1.4.2",
      "spec": "CSS 2.1",
      "text": "CSS property definitions",
      "url": "https://drafts.csswg.org/css2/about.html#property-defs"
    },
    "snapshot": {
      "number": "1.4.2",
      "spec": "CSS 2.1",
      "text": "CSS property definitions",
      "url": "https://www.w3.org/TR/CSS21/about.html#property-defs"
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  },
  "/about#q1.0": {
    "current": {
      "number": "1",
      "spec": "CSS 2.1",
      "text": "About the CSS 2.2 Specification",
      "url": "https://drafts.csswg.org/css2/about.html#q1.0"
    },
    "snapshot": {
      "number": "1",
      "spec": "CSS 2.1",
      "text": "About the CSS 2.1 Specification",
      "url": "https://www.w3.org/TR/CSS21/about.html#q1.0"
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  "/about#reading": {
    "current": {
      "number": "1.2",
      "spec": "CSS 2.1",
      "text": "Reading the specification",
      "url": "https://drafts.csswg.org/css2/about.html#reading"
    },
    "snapshot": {
      "number": "1.2",
      "spec": "CSS 2.1",
      "text": "Reading the specification",
      "url": "https://www.w3.org/TR/CSS21/about.html#reading"
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  },
  "/about#shorthand": {
    "current": {
      "number": "1.4.3",
      "spec": "CSS 2.1",
      "text": "Shorthand properties",
      "url": "https://drafts.csswg.org/css2/about.html#shorthand"
    },
    "snapshot": {
      "number": "1.4.3",
      "spec": "CSS 2.1",
      "text": "Shorthand properties",
      "url": "https://www.w3.org/TR/CSS21/about.html#shorthand"
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  },
  "/about#value-defs": {
    "current": {
      "number": "1.4.2.1",
      "spec": "CSS 2.1",
      "text": "Value",
      "url": "https://drafts.csswg.org/css2/about.html#value-defs"
    },
    "snapshot": {
      "number": "1.4.2.1",
      "spec": "CSS 2.1",
      "text": "Value",
      "url": "https://www.w3.org/TR/CSS21/about.html#value-defs"
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  "/aural#Emacspeak": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Emacspeak",
      "url": "https://drafts.csswg.org/css2/aural.html#Emacspeak"
    },
    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Emacspeak",
      "url": "https://www.w3.org/TR/CSS21/aural.html#Emacspeak"
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  },
  "/aural#angles": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Angles",
      "url": "https://drafts.csswg.org/css2/aural.html#angles"
    },
    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Angles",
      "url": "https://www.w3.org/TR/CSS21/aural.html#angles"
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  },
  "/aural#aural-intro": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Introduction to aural style sheets",
      "url": "https://drafts.csswg.org/css2/aural.html#aural-intro"
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    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Introduction to aural style sheets",
      "url": "https://www.w3.org/TR/CSS21/aural.html#aural-intro"
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  },
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    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "The media types 'aural' and 'speech'",
      "url": "https://drafts.csswg.org/css2/aural.html#aural-media-group"
    },
    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "The media types 'aural' and 'speech'",
      "url": "https://www.w3.org/TR/CSS21/aural.html#aural-media-group"
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  "/aural#aural-tables": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Audio rendering of tables",
      "url": "https://drafts.csswg.org/css2/aural.html#aural-tables"
    },
    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Audio rendering of tables",
      "url": "https://www.w3.org/TR/CSS21/aural.html#aural-tables"
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  },
  "/aural#cue-props": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Cue properties: 'cue-before', 'cue-after', and 'cue'",
      "url": "https://drafts.csswg.org/css2/aural.html#cue-props"
    },
    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Cue properties: 'cue-before', 'cue-after', and 'cue'",
      "url": "https://www.w3.org/TR/CSS21/aural.html#cue-props"
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  },
  "/aural#frequencies": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Frequencies",
      "url": "https://drafts.csswg.org/css2/aural.html#frequencies"
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    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Frequencies",
      "url": "https://www.w3.org/TR/CSS21/aural.html#frequencies"
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  },
  "/aural#mixing-props": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Mixing properties: 'play-during'",
      "url": "https://drafts.csswg.org/css2/aural.html#mixing-props"
    },
    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Mixing properties: 'play-during'",
      "url": "https://www.w3.org/TR/CSS21/aural.html#mixing-props"
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  },
  "/aural#pause-props": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Pause properties: 'pause-before', 'pause-after', and 'pause'",
      "url": "https://drafts.csswg.org/css2/aural.html#pause-props"
    },
    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Pause properties: 'pause-before', 'pause-after', and 'pause'",
      "url": "https://www.w3.org/TR/CSS21/aural.html#pause-props"
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  },
  "/aural#q19.0": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Aural style sheets",
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    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Aural style sheets",
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  "/aural#sample": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Sample style sheet for HTML",
      "url": "https://drafts.csswg.org/css2/aural.html#sample"
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    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Sample style sheet for HTML",
      "url": "https://www.w3.org/TR/CSS21/aural.html#sample"
    }
  },
  "/aural#spatial-props": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Spatial properties: 'azimuth' and 'elevation'",
      "url": "https://drafts.csswg.org/css2/aural.html#spatial-props"
    },
    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Spatial properties: 'azimuth' and 'elevation'",
      "url": "https://www.w3.org/TR/CSS21/aural.html#spatial-props"
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  "/aural#speak-headers": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Speaking headers: the 'speak-header' property",
      "url": "https://drafts.csswg.org/css2/aural.html#speak-headers"
    },
    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Speaking headers: the 'speak-header' property",
      "url": "https://www.w3.org/TR/CSS21/aural.html#speak-headers"
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  },
  "/aural#speaking-props": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Speaking properties: 'speak'",
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    },
    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Speaking properties: 'speak'",
      "url": "https://www.w3.org/TR/CSS21/aural.html#speaking-props"
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  },
  "/aural#speech-props": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Speech properties: 'speak-punctuation' and 'speak-numeral'",
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    "snapshot": {
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      "spec": "CSS 2.1",
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      "url": "https://www.w3.org/TR/CSS21/aural.html#speech-props"
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  "/aural#times": {
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      "number": "",
      "spec": "CSS 2.1",
      "text": "Times",
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    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Times",
      "url": "https://www.w3.org/TR/CSS21/aural.html#times"
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  },
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      "number": "",
      "spec": "CSS 2.1",
      "text": "Voice characteristic properties: 'speech-rate', 'voice-family', 'pitch', 'pitch-range', 'stress', and 'richness'",
      "url": "https://drafts.csswg.org/css2/aural.html#voice-char-props"
    },
    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Voice characteristic properties: 'speech-rate', 'voice-family', 'pitch', 'pitch-range', 'stress', and 'richness'",
      "url": "https://www.w3.org/TR/CSS21/aural.html#voice-char-props"
    }
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  "/aural#volume-props": {
    "current": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Volume properties: 'volume'",
      "url": "https://drafts.csswg.org/css2/aural.html#volume-props"
    },
    "snapshot": {
      "number": "",
      "spec": "CSS 2.1",
      "text": "Volume properties: 'volume'",
      "url": "https://www.w3.org/TR/CSS21/aural.html#volume-props"
    }
  },
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    "current": {
      "number": "8.6",
      "spec": "CSS 2.1",
      "text": "The box model for inline elements in bidirectional context",
      "url": "https://drafts.csswg.org/css2/box.html#bidi-box-model"
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    "snapshot": {
      "number": "8.6",
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      "text": "The box model for inline elements in bidirectional context",
      "url": "https://www.w3.org/TR/CSS21/box.html#bidi-box-model"
    }
  },
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    "current": {
      "number": "8.5.2",
      "spec": "CSS 2.1",
      "text": "Border color: 'border-top-color', 'border-right-color', 'border-bottom-color', 'border-left-color', and 'border-color'",
      "url": "https://drafts.csswg.org/css2/box.html#border-color-properties"
    },
    "snapshot": {
      "number": "8.5.2",
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      "text": "Border color: 'border-top-color', 'border-right-color', 'border-bottom-color', 'border-left-color', and 'border-color'",
      "url": "https://www.w3.org/TR/CSS21/box.html#border-color-properties"
    }
  },
  "/box#border-properties": {
    "current": {
      "number": "8.5",
      "spec": "CSS 2.1",
      "text": "Border properties",
      "url": "https://drafts.csswg.org/css2/box.html#border-properties"
    },
    "snapshot": {
      "number": "8.5",
      "spec": "CSS 2.1",
      "text": "Border properties",
      "url": "https://www.w3.org/TR/CSS21/box.html#border-properties"
    }
  },
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      "number": "8.5.4",
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      "text": "Border shorthand properties: 'border-top', 'border-right', 'border-bottom', 'border-left', and 'border'",
      "url": "https://drafts.csswg.org/css2/box.html#border-shorthand-properties"
    },
    "snapshot": {
      "number": "8.5.4",
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      "text": "Border shorthand properties: 'border-top', 'border-right', 'border-bottom', 'border-left', and 'border'",
      "url": "https://www.w3.org/TR/CSS21/box.html#border-shorthand-properties"
    }
  },
  "/box#border-style-properties": {
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      "number": "8.5.3",
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      "text": "Border style: 'border-top-style', 'border-right-style', 'border-bottom-style', 'border-left-style', and 'border-style'",
      "url": "https://drafts.csswg.org/css2/box.html#border-style-properties"
    },
    "snapshot": {
      "number": "8.5.3",
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      "text": "Border style: 'border-top-style', 'border-right-style', 'border-bottom-style', 'border-left-style', and 'border-style'",
      "url": "https://www.w3.org/TR/CSS21/box.html#border-style-properties"
    }
  },
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    "current": {
      "number": "8.5.1",
      "spec": "CSS 2.1",
      "text": "Border width: 'border-top-width', 'border-right-width', 'border-bottom-width', 'border-left-width', and 'border-width'",
      "url": "https://drafts.csswg.org/css2/box.html#border-width-properties"
    },
    "snapshot": {
      "number": "8.5.1",
      "spec": "CSS 2.1",
      "text": "Border width: 'border-top-width', 'border-right-width', 'border-bottom-width', 'border-left-width', and 'border-width'",
      "url": "https://www.w3.org/TR/CSS21/box.html#border-width-properties"
    }
  },
  "/box#box-dimensions": {
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      "number": "8.1",
      "spec": "CSS 2.1",
      "text": "Box dimensions",
      "url": "https://drafts.csswg.org/css2/box.html#box-dimensions"
    },
    "snapshot": {
      "number": "8.1",
      "spec": "CSS 2.1",
      "text": "Box dimensions",
      "url": "https://www.w3.org/TR/CSS21/box.html#box-dimensions"
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  },
  "/box#box-model": {
    "current": {
      "number": "8",
      "spec": "CSS 2.1",
      "text": "Box model",
      "url": "https://drafts.csswg.org/css2/box.html#box-model"
    },
    "snapshot": {
      "number": "8",
      "spec": "CSS 2.1",
      "text": "Box model",
      "url": "https://www.w3.org/TR/CSS21/box.html#box-model"
    }
  },
  "/box#collapsing-margins": {
    "current": {
      "number": "8.3.1",
      "spec": "CSS 2.1",
      "text": "Collapsing margins",
      "url": "https://drafts.csswg.org/css2/box.html#collapsing-margins"
    },
    "snapshot": {
      "number": "8.3.1",
      "spec": "CSS 2.1",
      "text": "Collapsing margins",
      "url": "https://www.w3.org/TR/CSS21/box.html#collapsing-margins"
    }
  },
  "/box#margin-properties": {
    "current": {
      "number": "8.3",
      "spec": "CSS 2.1",
      "text": "Margin properties: 'margin-top', 'margin-right', 'margin-bottom', 'margin-left', and 'margin'",
      "url": "https://drafts.csswg.org/css2/box.html#margin-properties"
    },
    "snapshot": {
      "number": "8.3",
      "spec": "CSS 2.1",
      "text": "Margin properties: 'margin-top', 'margin-right', 'margin-bottom', 'margin-left', and 'margin'",
      "url": "https://www.w3.org/TR/CSS21/box.html#margin-properties"
    }
  },
  "/box#mpb-examples": {
    "current": {
      "number": "8.2",
      "spec": "CSS 2.1",
      "text": "Example of margins, padding, and borders",
      "url": "https://drafts.csswg.org/css2/box.html#mpb-examples"
    },
    "snapshot": {
      "number": "8.2",
      "spec": "CSS 2.1",
      "text": "Example of margins, padding, and borders",
      "url": "https://www.w3.org/TR/CSS21/box.html#mpb-examples"
    }
  },
  "/box#padding-properties": {
    "current": {
      "number": "8.4",
      "spec": "CSS 2.1",
      "text": "Padding properties: 'padding-top', 'padding-right', 'padding-bottom', 'padding-left', and 'padding'",
      "url": "https://drafts.csswg.org/css2/box.html#padding-properties"
    },
    "snapshot": {
      "number": "8.4",
      "spec": "CSS 2.1",
      "text": "Padding properties: 'padding-top', 'padding-right', 'padding-bottom', 'padding-left', and 'padding'",
      "url": "https://www.w3.org/TR/CSS21/box.html#padding-properties"
    }
  },
  "/cascade#actual-value": {
    "current": {
      "number": "6.1.4",
      "spec": "CSS 2.1",
      "text": "Actual values",
      "url": "https://drafts.csswg.org/css2/cascade.html#actual-value"
    },
    "snapshot": {
      "number": "6.1.4",
      "spec": "CSS 2.1",
      "text": "Actual values",
      "url": "https://www.w3.org/TR/CSS21/cascade.html#actual-value"
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  },
  "/cascade#at-import": {
    "current": {
      "number": "6.3",
      "spec": "CSS 2.1",
      "text": "The @import rule",
      "url": "https://drafts.csswg.org/css2/cascade.html#at-import"
    },
    "snapshot": {
      "number": "6.3",
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      "text": "Alignment: the 'text-align' property",
      "url": "https://drafts.csswg.org/css2/text.html#alignment-prop"
    },
    "snapshot": {
      "number": "16.2",
      "spec": "CSS 2.1",
      "text": "Alignment: the 'text-align' property",
      "url": "https://www.w3.org/TR/CSS21/text.html#alignment-prop"
    }
  },
  "/text#caps-prop": {
    "current": {
      "number": "16.5",
      "spec": "CSS 2.1",
      "text": "Capitalization: the 'text-transform' property",
      "url": "https://drafts.csswg.org/css2/text.html#caps-prop"
    },
    "snapshot": {
      "number": "16.5",
      "spec": "CSS 2.1",
      "text": "Capitalization: the 'text-transform' property",
      "url": "https://www.w3.org/TR/CSS21/text.html#caps-prop"
    }
  },
  "/text#ctrlchars": {
    "current": {
      "number": "16.6.3",
      "spec": "CSS 2.1",
      "text": "Control and combining characters' details",
      "url": "https://drafts.csswg.org/css2/text.html#ctrlchars"
    },
    "snapshot": {
      "number": "16.6.3",
      "spec": "CSS 2.1",
      "text": "Control and combining characters' details",
      "url": "https://www.w3.org/TR/CSS21/text.html#ctrlchars"
    }
  },
  "/text#decoration": {
    "current": {
      "number": "16.3",
      "spec": "CSS 2.1",
      "text": "Decoration",
      "url": "https://drafts.csswg.org/css2/text.html#decoration"
    },
    "snapshot": {
      "number": "16.3",
      "spec": "CSS 2.1",
      "text": "Decoration",
      "url": "https://www.w3.org/TR/CSS21/text.html#decoration"
    }
  },
  "/text#egbidiwscollapse": {
    "current": {
      "number": "16.6.2",
      "spec": "CSS 2.1",
      "text": "Example of bidirectionality with white space collapsing",
      "url": "https://drafts.csswg.org/css2/text.html#egbidiwscollapse"
    },
    "snapshot": {
      "number": "16.6.2",
      "spec": "CSS 2.1",
      "text": "Example of bidirectionality with white space collapsing",
      "url": "https://www.w3.org/TR/CSS21/text.html#egbidiwscollapse"
    }
  },
  "/text#indentation-prop": {
    "current": {
      "number": "16.1",
      "spec": "CSS 2.1",
      "text": "Indentation: the 'text-indent' property",
      "url": "https://drafts.csswg.org/css2/text.html#indentation-prop"
    },
    "snapshot": {
      "number": "16.1",
      "spec": "CSS 2.1",
      "text": "Indentation: the 'text-indent' property",
      "url": "https://www.w3.org/TR/CSS21/text.html#indentation-prop"
    }
  },
  "/text#lining-striking-props": {
    "current": {
      "number": "16.3.1",
      "spec": "CSS 2.1",
      "text": "Underlining, overlining, striking, and blinking: the 'text-decoration' property",
      "url": "https://drafts.csswg.org/css2/text.html#lining-striking-props"
    },
    "snapshot": {
      "number": "16.3.1",
      "spec": "CSS 2.1",
      "text": "Underlining, overlining, striking, and blinking: the 'text-decoration' property",
      "url": "https://www.w3.org/TR/CSS21/text.html#lining-striking-props"
    }
  },
  "/text#q16.0": {
    "current": {
      "number": "16",
      "spec": "CSS 2.1",
      "text": "Text",
      "url": "https://drafts.csswg.org/css2/text.html#q16.0"
    },
    "snapshot": {
      "number": "16",
      "spec": "CSS 2.1",
      "text": "Text",
      "url": "https://www.w3.org/TR/CSS21/text.html#q16.0"
    }
  },
  "/text#spacing-props": {
    "current": {
      "number": "16.4",
      "spec": "CSS 2.1",
      "text": "Letter and word spacing: the 'letter-spacing' and 'word-spacing' properties",
      "url": "https://drafts.csswg.org/css2/text.html#spacing-props"
    },
    "snapshot": {
      "number": "16.4",
      "spec": "CSS 2.1",
      "text": "Letter and word spacing: the 'letter-spacing' and 'word-spacing' properties",
      "url": "https://www.w3.org/TR/CSS21/text.html#spacing-props"
    }
  },
  "/text#white-space-model": {
    "current": {
      "number": "16.6.1",
      "spec": "CSS 2.1",
      "text": "The 'white-space' processing model",
      "url": "https://drafts.csswg.org/css2/text.html#white-space-model"
    },
    "snapshot": {
      "number": "16.6.1",
      "spec": "CSS 2.1",
      "text": "The 'white-space' processing model",
      "url": "https://www.w3.org/TR/CSS21/text.html#white-space-model"
    }
  },
  "/text#white-space-prop": {
    "current": {
      "number": "16.6",
      "spec": "CSS 2.1",
      "text": "White space: the 'white-space' property",
      "url": "https://drafts.csswg.org/css2/text.html#white-space-prop"
    },
    "snapshot": {
      "number": "16.6",
      "spec": "CSS 2.1",
      "text": "White space: the 'white-space' property",
      "url": "https://www.w3.org/TR/CSS21/text.html#white-space-prop"
    }
  },
  "/ui#cursor-props": {
    "current": {
      "number": "18.1",
      "spec": "CSS 2.1",
      "text": "Cursors: the 'cursor' property",
      "url": "https://drafts.csswg.org/css2/ui.html#cursor-props"
    },
    "snapshot": {
      "number": "18.1",
      "spec": "CSS 2.1",
      "text": "Cursors: the 'cursor' property",
      "url": "https://www.w3.org/TR/CSS21/ui.html#cursor-props"
    }
  },
  "/ui#dynamic-outlines": {
    "current": {
      "number": "18.4",
      "spec": "CSS 2.1",
      "text": "Dynamic outlines: the 'outline' property",
      "url": "https://drafts.csswg.org/css2/ui.html#dynamic-outlines"
    },
    "snapshot": {
      "number": "18.4",
      "spec": "CSS 2.1",
      "text": "Dynamic outlines: the 'outline' property",
      "url": "https://www.w3.org/TR/CSS21/ui.html#dynamic-outlines"
    }
  },
  "/ui#magnification": {
    "current": {
      "number": "18.5",
      "spec": "CSS 2.1",
      "text": "Magnification",
      "url": "https://drafts.csswg.org/css2/ui.html#magnification"
    },
    "snapshot": {
      "number": "18.5",
      "spec": "CSS 2.1",
      "text": "Magnification",
      "url": "https://www.w3.org/TR/CSS21/ui.html#magnification"
    }
  },
  "/ui#outline-focus": {
    "current": {
      "number": "18.4.1",
      "spec": "CSS 2.1",
      "text": "Outlines and the focus",
      "url": "https://drafts.csswg.org/css2/ui.html#outline-focus"
    },
    "snapshot": {
      "number": "18.4.1",
      "spec": "CSS 2.1",
      "text": "Outlines and the focus",
      "url": "https://www.w3.org/TR/CSS21/ui.html#outline-focus"
    }
  },
  "/ui#q18.0": {
    "current": {
      "number": "18",
      "spec": "CSS 2.1",
      "text": "User interface",
      "url": "https://drafts.csswg.org/css2/ui.html#q18.0"
    },
    "snapshot": {
      "number": "18",
      "spec": "CSS 2.1",
      "text": "User interface",
      "url": "https://www.w3.org/TR/CSS21/ui.html#q18.0"
    }
  },
  "/ui#system-colors": {
    "current": {
      "number": "18.2",
      "spec": "CSS 2.1",
      "text": "System Colors",
      "url": "https://drafts.csswg.org/css2/ui.html#system-colors"
    },
    "snapshot": {
      "number": "18.2",
      "spec": "CSS 2.1",
      "text": "System Colors",
      "url": "https://www.w3.org/TR/CSS21/ui.html#system-colors"
    }
  },
  "/ui#system-fonts": {
    "current": {
      "number": "18.3",
      "spec": "CSS 2.1",
      "text": "User preferences for fonts",
      "url": "https://drafts.csswg.org/css2/ui.html#system-fonts"
    },
    "snapshot": {
      "number": "18.3",
      "spec": "CSS 2.1",
      "text": "User preferences for fonts",
      "url": "https://www.w3.org/TR/CSS21/ui.html#system-fonts"
    }
  },
  "/visudet#Computing_heights_and_margins": {
    "current": {
      "number": "10.6",
      "spec": "CSS 2.1",
      "text": "Calculating heights and margins",
      "url": "https://drafts.csswg.org/css2/visudet.html#Computing_heights_and_margins"
    },
    "snapshot": {
      "number": "10.6",
      "spec": "CSS 2.1",
      "text": "Calculating heights and margins",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#Computing_heights_and_margins"
    }
  },
  "/visudet#Computing_widths_and_margins": {
    "current": {
      "number": "10.3",
      "spec": "CSS 2.1",
      "text": "Calculating widths and margins",
      "url": "https://drafts.csswg.org/css2/visudet.html#Computing_widths_and_margins"
    },
    "snapshot": {
      "number": "10.3",
      "spec": "CSS 2.1",
      "text": "Calculating widths and margins",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#Computing_widths_and_margins"
    }
  },
  "/visudet#abs-non-replaced-height": {
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      "number": "10.6.4",
      "spec": "CSS 2.1",
      "text": "Absolutely positioned, non-replaced elements",
      "url": "https://drafts.csswg.org/css2/visudet.html#abs-non-replaced-height"
    },
    "snapshot": {
      "number": "10.6.4",
      "spec": "CSS 2.1",
      "text": "Absolutely positioned, non-replaced elements",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-height"
    }
  },
  "/visudet#abs-non-replaced-width": {
    "current": {
      "number": "10.3.7",
      "spec": "CSS 2.1",
      "text": "Absolutely positioned, non-replaced elements",
      "url": "https://drafts.csswg.org/css2/visudet.html#abs-non-replaced-width"
    },
    "snapshot": {
      "number": "10.3.7",
      "spec": "CSS 2.1",
      "text": "Absolutely positioned, non-replaced elements",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-width"
    }
  },
  "/visudet#abs-replaced-height": {
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      "number": "10.6.5",
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      "text": "Absolutely positioned, replaced elements",
      "url": "https://drafts.csswg.org/css2/visudet.html#abs-replaced-height"
    },
    "snapshot": {
      "number": "10.6.5",
      "spec": "CSS 2.1",
      "text": "Absolutely positioned, replaced elements",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#abs-replaced-height"
    }
  },
  "/visudet#abs-replaced-width": {
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      "number": "10.3.8",
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      "text": "Absolutely positioned, replaced elements",
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    },
    "snapshot": {
      "number": "10.3.8",
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      "text": "Absolutely positioned, replaced elements",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#abs-replaced-width"
    }
  },
  "/visudet#block-replaced-width": {
    "current": {
      "number": "10.3.4",
      "spec": "CSS 2.1",
      "text": "Block-level, replaced elements in normal flow",
      "url": "https://drafts.csswg.org/css2/visudet.html#block-replaced-width"
    },
    "snapshot": {
      "number": "10.3.4",
      "spec": "CSS 2.1",
      "text": "Block-level, replaced elements in normal flow",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#block-replaced-width"
    }
  },
  "/visudet#block-root-margin": {
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      "number": "10.6.6",
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    },
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      "spec": "CSS 2.1",
      "text": "Complicated cases",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#block-root-margin"
    }
  },
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    "current": {
      "number": "10.3.3",
      "spec": "CSS 2.1",
      "text": "Block-level, non-replaced elements in normal flow",
      "url": "https://drafts.csswg.org/css2/visudet.html#blockwidth"
    },
    "snapshot": {
      "number": "10.3.3",
      "spec": "CSS 2.1",
      "text": "Block-level, non-replaced elements in normal flow",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#blockwidth"
    }
  },
  "/visudet#containing-block-details": {
    "current": {
      "number": "10.1",
      "spec": "CSS 2.1",
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      "url": "https://drafts.csswg.org/css2/visudet.html#containing-block-details"
    },
    "snapshot": {
      "number": "10.1",
      "spec": "CSS 2.1",
      "text": "Definition of \"containing block\"",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#containing-block-details"
    }
  },
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      "number": "10.3.6",
      "spec": "CSS 2.1",
      "text": "Floating, replaced elements",
      "url": "https://drafts.csswg.org/css2/visudet.html#float-replaced-width"
    },
    "snapshot": {
      "number": "10.3.6",
      "spec": "CSS 2.1",
      "text": "Floating, replaced elements",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#float-replaced-width"
    }
  },
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    "current": {
      "number": "10.3.5",
      "spec": "CSS 2.1",
      "text": "Floating, non-replaced elements",
      "url": "https://drafts.csswg.org/css2/visudet.html#float-width"
    },
    "snapshot": {
      "number": "10.3.5",
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      "text": "Floating, non-replaced elements",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#float-width"
    }
  },
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      "number": "10.6.1",
      "spec": "CSS 2.1",
      "text": "Inline, non-replaced elements",
      "url": "https://drafts.csswg.org/css2/visudet.html#inline-non-replaced"
    },
    "snapshot": {
      "number": "10.6.1",
      "spec": "CSS 2.1",
      "text": "Inline, non-replaced elements",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#inline-non-replaced"
    }
  },
  "/visudet#inline-replaced-height": {
    "current": {
      "number": "10.6.2",
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      "text": "Inline replaced elements, block-level replaced elements in normal flow, 'inline-block' replaced elements in normal flow and floating replaced elements",
      "url": "https://drafts.csswg.org/css2/visudet.html#inline-replaced-height"
    },
    "snapshot": {
      "number": "10.6.2",
      "spec": "CSS 2.1",
      "text": "Inline replaced elements, block-level replaced elements in normal flow, 'inline-block' replaced elements in normal flow and floating replaced elements",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#inline-replaced-height"
    }
  },
  "/visudet#inline-replaced-width": {
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      "text": "Inline, replaced elements",
      "url": "https://drafts.csswg.org/css2/visudet.html#inline-replaced-width"
    },
    "snapshot": {
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      "text": "Inline, replaced elements",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#inline-replaced-width"
    }
  },
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      "number": "10.3.1",
      "spec": "CSS 2.1",
      "text": "Inline, non-replaced elements",
      "url": "https://drafts.csswg.org/css2/visudet.html#inline-width"
    },
    "snapshot": {
      "number": "10.3.1",
      "spec": "CSS 2.1",
      "text": "Inline, non-replaced elements",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#inline-width"
    }
  },
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      "number": "10.3.10",
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      "url": "https://drafts.csswg.org/css2/visudet.html#inlineblock-replaced-width"
    },
    "snapshot": {
      "number": "10.3.10",
      "spec": "CSS 2.1",
      "text": "'Inline-block', replaced elements in normal flow",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#inlineblock-replaced-width"
    }
  },
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      "number": "10.3.9",
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      "text": "'inline-block', non-replaced elements in normal flow",
      "url": "https://drafts.csswg.org/css2/visudet.html#inlineblock-width"
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    "snapshot": {
      "number": "10.3.9",
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      "text": "'Inline-block', non-replaced elements in normal flow",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#inlineblock-width"
    }
  },
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      "number": "10.8.1",
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      "text": "Leading and half-leading",
      "url": "https://drafts.csswg.org/css2/visudet.html#leading"
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    "snapshot": {
      "number": "10.8.1",
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      "text": "Leading and half-leading",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#leading"
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  },
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      "spec": "CSS 2.1",
      "text": "Line height calculations: the 'line-height' and 'vertical-align' properties",
      "url": "https://drafts.csswg.org/css2/visudet.html#line-height"
    },
    "snapshot": {
      "number": "10.8",
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      "text": "Line height calculations: the 'line-height' and 'vertical-align' properties",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#line-height"
    }
  },
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      "text": "Minimum and maximum heights: 'min-height' and 'max-height'",
      "url": "https://drafts.csswg.org/css2/visudet.html#min-max-heights"
    },
    "snapshot": {
      "number": "10.7",
      "spec": "CSS 2.1",
      "text": "Minimum and maximum heights: 'min-height' and 'max-height'",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#min-max-heights"
    }
  },
  "/visudet#min-max-widths": {
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      "text": "Minimum and maximum widths: 'min-width' and 'max-width'",
      "url": "https://drafts.csswg.org/css2/visudet.html#min-max-widths"
    },
    "snapshot": {
      "number": "10.4",
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      "text": "Minimum and maximum widths: 'min-width' and 'max-width'",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#min-max-widths"
    }
  },
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      "spec": "CSS 2.1",
      "text": "Block-level non-replaced elements in normal flow when 'overflow' computes to 'visible'",
      "url": "https://drafts.csswg.org/css2/visudet.html#normal-block"
    },
    "snapshot": {
      "number": "10.6.3",
      "spec": "CSS 2.1",
      "text": "Block-level non-replaced elements in normal flow when 'overflow' computes to 'visible'",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#normal-block"
    }
  },
  "/visudet#q10.0": {
    "current": {
      "number": "10",
      "spec": "CSS 2.1",
      "text": "Visual formatting model details",
      "url": "https://drafts.csswg.org/css2/visudet.html#q10.0"
    },
    "snapshot": {
      "number": "10",
      "spec": "CSS 2.1",
      "text": "Visual formatting model details",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#q10.0"
    }
  },
  "/visudet#root-height": {
    "current": {
      "number": "10.6.7",
      "spec": "CSS 2.1",
      "text": "'auto' heights for block formatting context roots",
      "url": "https://drafts.csswg.org/css2/visudet.html#root-height"
    },
    "snapshot": {
      "number": "10.6.7",
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      "text": "'Auto' heights for block formatting context roots",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#root-height"
    }
  },
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    "current": {
      "number": "10.5",
      "spec": "CSS 2.1",
      "text": "Content height: the 'height' property",
      "url": "https://drafts.csswg.org/css2/visudet.html#the-height-property"
    },
    "snapshot": {
      "number": "10.5",
      "spec": "CSS 2.1",
      "text": "Content height: the 'height' property",
      "url": "https://www.w3.org/TR/CSS21/visudet.html#the-height-property"
    }
  },
  "/visudet#the-width-property": {
    "current": {
      "number": "10.2",
      "spec": "CSS 2.1",
      "text": "Content width: the 'width' property",
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}