I used this article as a point of reference, in particular this working snippet, but in my page (the script below) the vertical snap scrolling isn't working. Why?
.parent { height: 100vh; scroll-snap-type: mandatory; scroll-snap-points-y: repeat(100vh); scroll-snap-type: y mandatory;}section { height: 100vh; scroll-snap-align: start; position: relative;}.one { background-color: red;}.two { background-color: blue;}.three { background-color: grey;}.four { background-color: green;}<div class="parent row"><section class="one"></section><section class="two"></section><section class="three"></section><section class="four"></section></div>