Add below html and css code into your dot HTML (.html) saved file and run file on browser.

See expected result. 



<div class="tooltip">Hover me to see TOOLTIP<span>Tax is determined by billing information</span></div></div>

.tooltip {position: relative;}
.tooltip:hover span {
    opacity: 1;
}
.tooltip span {
    padding: 12px;
    font-size: 12px;
    box-shadow: rgba(9, 30, 66, 0.25) 0px 4px 8px -2px, rgba(9, 30, 66, 0.08) 0px 0px 0px 1px;
    border: 0;
    border-radius: 6px;
    width: 180px;
    left: 20px; 
    top: 50%;
    transform: translateY(-50%);
    opacity: 0;
    background: #fff;
    position: absolute;
    z-index: 2;
    text-transform: none;
    -webkit-transition: all 0.4s ease;
    -moz-transition: all 0.4s ease-in-out;
    -o-transition: all 0.4s ease;
    transition: all 0.4s ease-in-out;
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","Roboto","Helvetica Neue","Ubuntu",sans-serif;
    font-weight: 400;
    line-height: 1.4;
}

.tooltip span:before {
    border-color: #08080800 #fff;
    border-style: solid;
    border-width: 10px 10px 10px 0;
    top: 50%;
    content: "";
    display: block;
    left: -8px;
    position: absolute;
    width: 0;
    transform: translateY(-50%);
    filter: drop-shadow(0px 0px 0px rgba(130,130,130,1));
}