JSFiddle - React, Tailwind, and code Playground

HTML

<div class="parent_container_the_icon">
     <div class="label">
     This it the label text
     </div>
 <div>

CSS

.parent_container_the_icon {
    height: 50px;
    width: 50px;
    float: left;
    border:1px solid #F00;
}

.label {
    display: block;
    position: absolute;
    white-space:nowrap;
    background-color:#0CE;
}