body div#flechaIzquierda::after{content:"";border:solid black;border-width:0 2px 2px 0;display:inline-block;padding:3px;transform:rotate(135deg);-webkit-transform:rotate(135deg);top:-16px;left:10px;}body div#flechaDerecha::after{content:"";border:solid black;border-width:0 2px 2px 0;display:inline-block;padding:3px;transform:rotate(315deg);-webkit-transform:rotate(315deg);top:-16px;left:8px;}