JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="box">
        Hello world
        
        <div class="box">
            I'm wider than my parent
        </div>
    </div>
</div>

CSS

.container { 
    min-width: 200px; 
    height: 130px; 
    position:relative; 
    border: 1px solid #ccc; 
    background-color: red;
}
.box { 
    position: absolute; 
    border-right: 10px solid blue; 
    width: 100px;
    top: 30px; 
    text-align: center;
    left: 30px; 
}