JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper">
<h2><span>CAPTION</span></h2>
</div>

CSS

.wrapper {
    width: 500px;
}

h2 {
    height: 33px; 
    text-align: center; 
    width: 100%; 
    display: table-row;    
}

h2:BEFORE, h2:AFTER  {
    position: relative; 
    display: table-cell;
    content: " "; 
    width: 50%;
    height: 33px; 
    background: #ff00ff;
}

h2 span {
    margin:0 20px;
}