.teaching-demo-bar{position:relative;z-index:50;background:#173e34;color:white;font:13px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif;padding:12px max(18px,calc((100% - 1180px)/2));display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center}.teaching-demo-bar a{color:#fff;text-decoration:underline;text-underline-offset:4px;white-space:nowrap}.teaching-demo-bar button{background:transparent;color:white;border:1px solid #94b3a9;border-radius:5px;padding:4px 8px;cursor:pointer;font:inherit}.teaching-demo-bar span{flex:1;min-width:230px}.teaching-demo-bar strong{display:block}.teaching-demo-bar :focus-visible{outline:2px solid white;outline-offset:3px}html.js .reveal{opacity:1;transform:none;transition:none}[hidden]{display:none!important}