Babylon.js/sandbox/index.css

html, body {
    width: 100%;
    height: 100%;
    padding: 0;
    margin: 0;
    overflow: hidden;
    font-family: "Segoe WP", "Segoe UI", "Verdana", "Arial";
}

.hidden {
    display: none;
}

#renderCanvas {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    margin-bottom: 65px;
    touch-action: none;
    -ms-touch-action: none;
}

.help {
    display: none;
    position: absolute;
    background-color: #3B789A;
    right: 0;
    bottom: 70px;
    color: white;
    padding-right: 10px;
    width: 360px;
    height: 30px;
    transition: all 0.5s ease;
    -webkit-transition: all 0.5s ease;
    transform: translateX(400px);
    -webkit-transform: translateX(400px);
        text-align: center;
}

    .help.shown {
        transform: translateX(-100px);
        -webkit-transform: translateX(-100px);
        display: inline;
    }

 .help2 {
    display: none;
    position: absolute;
    background-color: #3B789A;
    right: 0;
    bottom: 70px;
    color: white;
    padding-right: 10px;
    width: 360px;
    height: 30px;
    transition: all 0.5s ease;
    -webkit-transition: all 0.5s ease;
    transform: translateX(400px);
    -webkit-transform: translateX(400px);
        text-align: center;
}

    .help2.shown {
        transform: translateX(0px);
        -webkit-transform: translateX(0px);
        display: inline;
    }

#helpArrow {
    position: absolute;
    right: -65px;
    bottom: 10px;
}

#fps {
    position: absolute;
    font-size: 30px;
    color: white;
    bottom: 15px;
    right: 85px;
    width: 85px;
}

a {
    color: white;
}

    a:visited {
        color: white;
    }


.footer {
    position: absolute;
    width: 100%;
    height: 56px;
    bottom: 0;
    background-color: #3B789A;
    padding-left: 15px;
}

.footerRight {
    display: inline;
    position: absolute;
    bottom: 0;
    right: 10px;
    top: 0px;
}

.footerLeft {
    position: absolute;
    bottom: 20px;
    left: 15px;
    color: white;
}

.footerRight a {
    float: left; /* Float links side by side */
    width: 56px; 
    height: 56px;
    margin: 0px;
    padding: 0;
    transition: all 0.3s ease; /* Add transition for hover effects */
}

.footerRight a img {
    width: 48px; 
    height: 48px;
    margin: 4px;
}

.footerRight a:hover {
    background-color: #162D3A; /* Add a hover color */
}

.footerRight a:active {
    background-color: #2c5a74; /* Add a hover color */
}

.custom-upload {
    position: relative;
    background:url(./Assets/Icon_OpenFile.svg) center right no-repeat;
    width: 48px; 
    height: 48px;
    margin: 4px;
}

.custom-upload input[type=file]
{
    outline:none;
    position: relative;
    text-align: right;    
    -moz-opacity:0 ;
    opacity: 0;
    z-index: 2;
    width:100%;
    height:100%;
    filter:alpha(opacity=0);
}

#logo {
    width: 100%;
    height: 100%;
    background: url('./Assets/LogoSandbox.png') no-repeat 0 0;
    background-position: center;
}

#btnDownArrow {
    position: absolute;
    bottom: 35px;
    right: 30px;
}

#loadingText {
    width: 100%;
    height: 60px;
    position: absolute;
    top: 50%;
    left: 0;
    margin-top: -30px;
    color: white;
    text-align: center;
    padding-top: 10px;
    font-size: 30px;
    transition: transform 0.25s ease-in-out;
    -webkit-transition: -webkit-transform 0.25s ease-in-out;
    z-index: 3;
    cursor: default;
    background-color: #3B789A;
}

.loadingText {
    transform: translateX(120%);
    -webkit-transform: translateX(120%);
}

#errorZone {
    display:none;
    position: absolute;
    width: 50%;
    left: 25%;
    bottom: 80px;
    background-color: #C73228;
    padding:20px;
    border-radius: 5px;
    color:white;
    font-family: 'Inconsolata';
}
#errorZone button {
    position: absolute;
    top: 3px;
    right: 10px;
    padding: 0;
    cursor: pointer;
    background: transparent;
    border: 0;
    -webkit-appearance: none;
    color: #000;
    text-shadow: 0 1px 0 #fff;
    opacity: .4;
    font-size: 1.8em;
}