JSFiddle - React, Tailwind, and code Playground

HTML

<h1>test</h1>

<div class="test">

<h1>test</h1>

</div>

CSS

h1{
font-size: 30px;
text-align: center;
padding:0;
margin:0;
border-top:1px solid #C0C0C0;
}

.test h1{
font-size: 12px;
text-align: right;
border:0;
}