body{margin:0;font-size:x-small;font-family:sans-serif;overflow:hidden;display:flex;flex-wrap:wrap}*{box-sizing:border-box}button{border:none;width:50%;height:50vh;text-align:center;display:flex;justify-content:center;align-items:center;transition:all .2s;color:#111;background-color:#ccc}button#share{position:fixed;bottom:0;right:0;width:min-content;height:unset;padding:1rem;background-color:#000;color:#fff;transform-origin:50% 50%;transform:rotate(45deg) translate(0.25rem, 0.25rem);aspect-ratio:1;border-radius:50%}