.accordion{position:relative}.accordion:before{border-color:transparent transparent transparent #000;border-style:solid;border-width:6px 0 6px 8px;content:"";height:0;left:0;opacity:0;position:absolute;top:24px;transition:opacity .3s ease-in-out;width:0}.accordion.is-open:before{opacity:1}.accordion+.accordion{border-top:1px solid #e5e7eb}