html {
    -ms-content-zooming: none;
    -ms-touch-action: none;
}
body, div {
    margin: 0;
    padding: 0;
    outline: none;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    -khtml-user-select: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
canvas {
    margin: 0;
    padding: 0;
    outline: none;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    -khtml-user-select: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    -webkit-border-radius: 15px;
    -moz-border-radius: 15px;
    -ms-border-radius: 15px;
    border-radius: 15px;
    background-color: rgba(0, 0, 0, 0);
}
body {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 0;
    border: 0;
    margin: 0;
    cursor: default;
    color: #888;
    background-color: #000;
    text-align: center;
    font-family: Helvetica, Verdana, Arial, sans-serif;
    display: flex;
    flex-direction: column;
}