.cm-hmd-list-indent .cm-tab,ul ul{position:relative}.cm-hmd-list-indent .cm-tab::before,ul ul::before{content:'';border-left:1px solid rgba(0,122,255,.25);position:absolute}.cm-hmd-list-indent .cm-tab::before{left:0;top:-5px;bottom:-4px}ul ul::before{left:-11px;top:0;bottom:0}