html::-webkit-scrollbar,
body::-webkit-scrollbar {
    display: none;
}

body {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    margin: 0;
    padding: 0;
}

.main {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

#canvas {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.main>a {
    position: relative;
    z-index: 11;
}

.main>a>img {
    display: block;
    margin: auto;
}