JSFiddle - React, Tailwind, and code Playground

HTML

<div>
     <h1>Wie bekomme ich das hin?</h1>

</div>

CSS

div {
    line-height: 1.2;
    padding: 0;
    /*border-left: 2em solid #c0c; */
    display:inline-block;
    width: 300px;
}
h1 {
    background-color: #F00;
    color: #fff;
    display: inline;
    margin: 0;
    padding: 0;
    line-height: 44px;
    font-size: 35px;
    box-shadow:-5px 0 0 #f00, 10px 0 0 #f00;
}