* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;

    -webkit-touch-callout:none;
    -webkit-user-select:none;
    -khtml-user-select:none;
    -moz-user-select:none;
    -ms-user-select:none;
    user-select:none;
    -webkit-tap-highlight-color:rgba(0,0,0,0);
}

html,
body {
    overflow: hidden;
    overscroll-behavior: none;
}

#webgl {
    position: fixed;
    top: 0;
    left: 0;
    outline: none;
}