JSFiddle - React, Tailwind, and code Playground
by Rishi Kumar
HTML
<li class="title">
Item to hover over
<div class="tooltip">
<label><em>Full title:</em> Some title</label><br>
<label><em>Description:</em> Some description</label><br>
</div>
</li>
CSS
.title div.tooltip{
opacity: 0;
-webkit-transition: opacity .1s ease-in-out;
-moz-transition: opacity .1s ease-in-out;
-ms-transition: opacity .1s ease-in-out;
-o-transition: opacity .1s ease-in-out;
transition: opacity .1s ease-in-out;
position: relative;
left: 60px;
bottom: 0px;
border-radius: 9px;
background: #ffffff; /* Old browsers */
background: -moz-linear-gradient(top, #ffffff 0%, #f6f6f6 47%, #ededed 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#ffffff), color-stop(47%,#f6f6f6), color-stop(100%,#ededed)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top, #ffffff 0%,#f6f6f6 47%,#ededed 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top, #ffffff 0%,#f6f6f6 47%,#ededed 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top, #ffffff 0%,#f6f6f6 47%,#ededed 100%); /* IE10+ */
background: linear-gradient(to bottom, #ffffff 0%,#f6f6f6 47%,#ededed 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#ededed',GradientType=0 ); /* IE6-9 */
border: 1px solid silver;
box-shadow: 0 0 5px black;
color: black;
font-family: 'Droid Sans';
font-weight: bold;
padding: 0 5px;
line-height: 180%;
}
.title:hover div.tooltip{
opacity: 1;
position: relative;
left: 60px;
bottom: 0px;
border-radius: 9px;
background: #ffffff; /* Old browsers */
background: -moz-linear-gradient(top, #ffffff 0%, #f6f6f6 47%, #ededed 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#ffffff), color-stop(47%,#f6f6f6), color-stop(100%,#ededed)); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top, #ffffff 0%,#f6f6f6 47%,#ededed 100%); /* Chrome10+,Safari5.1+ */
background:...