#header{box-sizing:border-box;z-index:100;position:absolute;top:0;right:0;padding:.5rem;width:100%;display:flex;justify-content:space-between;flex-direction:row}button.action{background:0 0;border:none;cursor:pointer;color:inherit;padding:.5rem 1rem;border-radius:3px}.spacer-left{margin-left:.5rem}.spacer-right{margin-right:.5rem}.dim{transition:opacity 150ms;opacity:.3}.dim:hover,.dim:active,.dim:focus{opacity:1}.hidden{opacity:0;transition:opacity 150ms}.hidden:hover,.hidden:active,.hidden:focus{opacity:1}.opaque{opacity:1}.flex{display:flex;align-items:center}.flex.column{flex-direction:column}.relative{position:relative}.nowrap{white-space:nowrap}#auth{display:flex;flex-direction:row-reverse;align-items:center}#user-icon{overflow:hidden}#user-icon img{height:24px;width:24px;border-radius:50%;transition:opacity 250ms}#sync.active{color:#2684ff}#firebase-ui{align-items:flex-end;margin:2px;padding:.5rem;top:0;right:0;left:0}.dropdown{position:absolute;z-index:100}.border{border-width:1px;border-color:inherit;border-style:solid;border-radius:3px}@media only screen and (min-width:500px){#firebase-ui{width:360px;left:auto}}#firebase-ui button{transition:opacity 200ms;opacity:.75}#firebase-ui button:hover{opacity:1}#firebase-ui-close{margin-bottom:.25rem}#user-dropdown{right:0;padding-top:7px}#user-dropdown>div:after{top:-6px;right:20px;left:auto;border:7px solid transparent;border-bottom-color:inherit;position:absolute;display:inline-block;content:""}.dropdown-item{display:flex;justify-content:space-between;width:100%}.icon-sm{display:flex;align-items:center;justify-content:center;transform:scale(.65)}#viewer-count{opacity:.6;font-size:14px;padding:.5rem}@charset "UTF-8";@media print{.no-print,.no-print *{display:none !important}}.h-full{height:100%;width:auto}.snippet{position:absolute;right:0;bottom:0;display:flex;align-items:center;justify-content:center;height:60px;padding:0 .5rem;opacity:.8;border-radius:5px}.icon{width:24px;height:24px}img{border:1px solid #ccc;border-radius:5px}.reveal.paused .pause-overlay{visibility:visible;opacity:1}.twitter-tweet-rendered{display:flex;justify-content:center;align-items:center;margin:0 auto !important}@media screen and (min-width:900px){.twitter-tweet-rendered{max-width:400px !important}}.overflow-auto{max-height:100%;overflow-y:auto}#chalkboard-controls{position:absolute;bottom:0;left:0;z-index:400}#chalkboard-controls ul{list-style:none;padding:0;margin:1rem}#chalkboard-controls button{background:0 0;border:none;cursor:pointer;color:inherit;padding:.25rem;border-radius:3px}.fragment.small{font-size:1.5rem;width:60%;margin:0 auto}