.h1, .h2, etc. make fonts larger and bold. They have the same styles as h1, h2, etc.
.sm1, .sm2, etc. make fonts smaller. These are utility classes that can be combined with other classes.
.text-middle vertically centers text in a block.
The .ls-* classes set the letter spacing.
The .ls-n* classes set negative letter spacing.
.ls-1 have small positive letter spacing..ls-2 have medium positive letter spacing..ls-3 have large positive letter spacing..ls-4 have extra positive negative letter spacing..ls-n1 have small negative letter spacing..ls-n2 have medium negative letter spacing..ls-n3 have large negative letter spacing..ls-n4 have extra large negative letter spacing.You can customize the letter spacings using these variables:
The .lh-* classes set the line height.
.lh-1. Default: 1. Here is some sample text for reference..lh-2. Default: 1.1. Here is some sample text for reference..lh-3. Default 1.25. Here is some sample text for reference..lh-4. Default: 2. Here is some sample text for reference.You can customize the line heights using these variables:
.text-shadow adds a text shadow to inline text.