Babylon.js/Playground/frame.css

html, body, canvas {
    overflow: hidden;
    width: 100%;
    height: 100%;
    background-color: #272822;
    margin:0;
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    touch-action: none;
}

canvas {
    border:none !important;
    outline:none !important;
}

#fpsLabel {
    position: absolute;
    right: 10px;
    top: 20px;
    cursor: default;
    z-index:10;
    background-color: #7283a0;
    color:white;
    padding:5px;
    font-family: 'Segoe UI';
    pointer-events: none;
    user-select: none;
}

.refreshlabel, .editlabel{
    position: absolute;
    left: 0px;
    cursor: pointer;    
    color: white;
    background-color: #7283a0;
    color:white;
    padding:5px;
    
}

.refreshlabel {
    top: 20px;
}
.editlabel {
    top: 75px;
}