body {

    width: 100vw;
    height: 100%;
    margin: 0;

    overflow-y: scroll;
    overflow-x: hidden;
}



.scene.one {
    width: 100%;
    height: 100%;
    position: fixed;
    z-index: 999;
}

section {

    width: 100%;
    height: 100vh;
    position: relative;

}

.section-one {
    background-color: tomato;
}

.section-two {
    background-color: steelblue;
}

.section-three {
    background-color: crimson;
}

.section-four {
    background-color: lime;
}

.section-five {
    background-color: grey;
}