html,body,main,section{height:100%}*{box-sizing:border-box}main{scroll-snap-type:y proximity;scroll-behavior:smooth;overflow:auto}section{scroll-snap-align:start;flex-direction:column;justify-content:center;align-items:center;padding:2rem;display:flex;overflow:hidden}button{cursor:pointer;background-color:#0000;border:none;padding:0;line-height:1}