JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper">
    <div class="inside">
        text
    </div>
</div>
<br>
<div class="wrapper">
    <div class="inside" style="display:inline-block">
        text
    </div>
</div>

CSS

.wrapper{
    height:300px;
    background:red;
    position:relative;
}

.inside{
    height:100px;
    background:blue;
    margin-top:20px;
    width:100%;
}