JSFiddle - React, Tailwind, and code Playground

HTML

<h2><span>Small title</span></h2>

CSS

h2{
    width:100%;
    position:relative;
    top:0; left: 0;
    text-align: center;
}

h2:before {
    content:"";
    display:inline-block;
    width:100%;
    height:1px;
    background-color:red;
    position:absolute;
    top: 50%;
    z-index: -1;
}

h2:before{
    left:0;
}

h2 span{
    display:inline-block;
    text-align:center;
    background: white;
}