#viewer{max-width:520;padding:2rem .5rem .5rem;margin:0 auto;text-align:center;overflow:hidden}body{background:none transparent}button{z-index:999;border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#d3d3d344;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}