body{
    font-family: 'Google Sans','Noto Sans SC';
    margin: 0;
    padding: 0;
}
#canvas{
    position: fixed;
    width: 100vw;
    height: 100vh;
}
@media screen and (max-aspect-ratio: 1/1){
    #canvas{
        width: 100vh;
        height: 100vw;
        transform: rotate(90deg);
        transform-origin: center center;
        position: absolute;
        top: 50%;
        left: 50%;
        margin-top: -50vw;
        margin-left: -50vh;
    }
}