cesiumDemo/public/static/css/CesiumViewer.css

@import url(../Cesium/Widgets/widgets.css);
@import url(../Cesium/Widgets/lighter.css);

html {
    height: 100%;
}

.cesium-viewer-toolbar {
    z-index: 50;
}

body {
    height: 100%;
    width: 100%;
    margin: 0;
    overflow: hidden;
    padding: 0;
    background: #000;
}

.fullWindow {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    margin: 0;
    overflow: hidden;
    padding: 0;
    font-family: sans-serif;
}

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