::selection{background:#efefef}::-moz-selection{background:#efefef}main header{position:-webkit-sticky;position:sticky;top:0}main div#section{margin-left:auto;margin-right:auto}@media only screen and (min-width: 667px){main div#section{width:90%;max-width:90em}}main div#section>p:first-child{font-size:1.2em}main div#section>h2{font-size:1.6em;font-weight:500;color:#30456B;margin-top:2em}@media only screen and (max-width: 666px), only screen and (prefers-color-scheme: dark){main div#section>h2{color:white}}main div#section>h2+p{margin-top:.75em}main div#section h3{color:#30456B;font-size:1.2em;font-weight:500;margin:1.5em 0 0 1.5em}@media only screen and (max-width: 666px), only screen and (prefers-color-scheme: dark){main div#section h3{color:white}}main div#section h3::before{content:'■';margin-right:.2em}main div#section h3+p{margin-left:1.7em}main div#section ol{list-style:none;padding-left:0;display:table;margin:1em 0 3em 1.7em}main div#section ol li:after{content:"";display:block}main div#section ol li{display:table-row;counter-increment:table-ol}main div#section ol li:before{content:counter(table-ol) ".";display:table-cell;padding-right:0.4em}