index.css

.backdrop {
    display: inline-block;
    background: rgba(42, 42, 42, 0.7);
    border-radius: 5px;
    border: 1px solid #444;
    padding: 5px 10px;
    color: #fff;
    line-height: 150%;
    font-size: small;
}

#heightSliderLabel, #heightValue {
    vertical-align: top;
}

.backdrop a:link, .backdrop a:visited, .backdrop a:hover {
    color: #fff
}

.loadingIndicator {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -33px;
    margin-left: -33px;
    width: 66px;
    height: 66px;
    background: url(Source/Images/ajax-loader.gif) center no-repeat;
}

.cover {
    display: none;
    position: absolute;
    background-color: rgba(0, 0, 0, 0.75);
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

#menu {
    position: absolute;
    left: 10px;
    top: 10px;
}

.nowrap {
    white-space: nowrap;
}

html, body, #cesiumContainer {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
    font-family: sans-serif;
    background: #000;
}

button.cesium-infoBox-camera {
    display: none;
}

#3DTiles {
    padding-top: 10px;
}