button{background-color:transparent;background-repeat:no-repeat;border:none;cursor:pointer;overflow:hidden;outline:none;border-radius:15px;margin-bottom:2px}button:hover{background-color:grey}.is-active{background-color:#d3d3d3}code{display:block;white-space:pre-wrap}blockquote{border-left:5px solid #ccc;padding:.5em 10px}.visible{visibility:visible}.invisible{visibility:hidden}