html,body{overscroll-behavior:none;min-height:100%}html{background:linear-gradient(#ffffff,red);font-family:Helvetica,sans-serif;font-size:2.5vw;line-height:120%}body{margin:0}section{height:100vh;display:flex;justify-content:center;align-items:center;padding:0 14vw;flex-direction:column}.overflow{height:18vw;overflow-y:auto;overscroll-behavior:contain}