<style type='text/css'> /* CSS Table of Contents */ #light-toc{background:#f5f5f5;border-radius:3px;padding:10px 20px} #toc_list{font-weight:700;cursor:pointer;margin:10px 0} #toc_list:focus,#toc li:focus,.back_tocontent:focus{outline:none} #toc_list svg{vertical-align:middle} #toc li{background:transparent;cursor:pointer;margin:.2em 0 .2em 1em} #toc ol li:before{left:-2em} #toc li a{color:#222} #toc li a:hover{color:#1e90ff} #toc{display:grid} .back_tocontent{display:inline-block;cursor:pointer;text-align:right;float:right;margin:15px auto;background:#00cec9;color:#fff;font-size:11px;padding:2px 12px;border-radius:99em;transition:all .3s} .back_tocontent:hover{background:#2d3436;color:#fff} :target::before{content:'';display:block;height:40px;margin-top:-40px;visibility:hidden} </style> <!-- above </head> --> --------------------------------------------------------------------------------------------------------------- <div id="
