main{font-family:sans-serif;width:80ch;margin:2rem auto;display:flex;flex-direction:column;row-gap:.5em}main button{width:20ch}main textarea{width:100%;height:6lh}.cleaned-controls{display:flex;column-gap:.5em;align-items:center}#copied{font-size:.8em;color:#555;opacity:0;transition:opacity .25s}#copied.visible{opacity:1}#version-label{position:fixed;bottom:.5rem;left:.5rem}#version-label>a{color:#aaa;text-decoration:none}