JSFiddle - React, Tailwind, and code Playground

by malleswar

HTML

<div class="demo">
    <span>Span 1</span>
    <span>Span 2</span>
    <span>Span 3</span>
</div>
<div class="demo">
    <span><div id='under'></div></span>
    <span><div id='under'></div></span>
    <span><div id='under'></div></span>
</div>

CSS

div.demo {
    display:table;
    width:100%;
}
div.demo span {
    display:table-cell;
    text-align:center;
}
#under {
    width:100px;
    height:2px;
    background-color:blue;
}