* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
html {
    width: 100vw;
}

body {
    width: 100vw;
    padding: 0;
    margin: 0;
}

svg {
    width: 100vw;
    height: 100vh;
    position: fixed;
    top: 0;
    bottom: 0;
}

.scrollBox {
    width: 100px;
    height: 3000px;
    position: absolute;
    top: 0;
    z-index: 0;
}