body {
    padding: 0;
    margin: 0;
}

canvas {
    position: absolute;
    width: 100%;
    height: 100%;
}

.main {
    top: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    z-index: 1099;
    position: fixed;
    min-height: 100vh;
    background: transparent;
}