.tooltipX { position: relative; display: inline-block; border-bottom: 1px dotted black; width: 100%; }  .tooltipX .tooltiptextX { visibility: hidden; width: 100%; background-color: #008000; color: #fff; text-align: center; border-radius: 6px; padding: 5px 0; position: absolute; z-index: 1; bottom: 150%; left: 20%; margin-left: -60px; }  .tooltipX .tooltiptextX::after { content: ""; position: absolute; top: 100%; left: 50%; margin-left: -5px; border-width: 5px; border-style: solid; border-color: black transparent transparent transparent; }  .tooltipX:hover .tooltiptextX { visibility: visible; }