/*CSS to generate rotating concentric circles for a loading screen. Thanks to
https://ihatetomatoes.net for initial code templates.*/

#loader {
    display: block;
    position: relative;
    left: 50%;
    top: 50%;
    width: 150px;
    height: 150px;
    margin: -20px 0 0 -75px;
    border-radius: 50%;
    border: 7px solid transparent;
    border-top-color: #f5a252;
    animation: spin 2s linear infinite;
    z-index: 1001;
}

    #loader:before {
        content: "";
        position: absolute;
        top: 5px;
        left: 5px;
        right: 5px;
        bottom: 5px;
        border-radius: 50%;
        border: 7px solid transparent;
        border-top-color: #579aca;
        animation: spin 3s linear infinite;
    }

    #loader:after {
        content: "";
        position: absolute;
        top: 15px;
        left: 15px;
        right: 15px;
        bottom: 15px;
        border-radius: 50%;
        border: 7px solid transparent;
        border-top-color: #e66581;
        animation: spin 1.5s linear infinite;
    }

    @keyframes spin {
        0%   {
            transform: rotateZ(0deg);
        }
        100% {
            transform: rotateZ(360deg);
        }
    }

.error, .error:after, .error:before {
    border-top-color: red !important;
}

.error {
    animation: spin 30s linear infinite !important;
}

.error:after {
  animation: spin 10s linear infinite !important;
}

.error:before {
  animation: spin 20s linear infinite !important;
}

.paused, .paused:after, .paused:before {
   animation-play-state: paused !important;
}

#demo-content {
	padding-top: 100px;
}

#loader-text p {
    font-size: 2em;
    z-index: 1002;
    text-align: center;
}

div#log-container {
    width: 80%;
    margin: 0% 10%;
}

.hidden {
    display: none;
}

.preview {
  margin-top: 40px;
  width: 70%;
}

#nbviewer-preview > iframe {
  width: 100%;
  height: 80vh;
  border: 1px solid #aaa;
}
