body {
    overflow:hidden;
    font-family:sans-serif;
}

#goFullScreen {
    user-select: none;
    width: 100px;
    padding:10px;
    border:1px solid black;
    background: #fff8;
    z-index: 1;
    position: absolute;
}
.fillparent {
    position:absolute;
    left:0px;
    right:0px;
    bottom:0px;
    top:0px;
}

.host {
    text-align: center;
}

canvas {
    height:100%;
}