JSFiddle - React, Tailwind, and code Playground

by Softlink

HTML

<div class="block1">
        <div class="block2">текст</div>
    </div>

CSS

.block1{
    display: inline-block;
    border: 1px solid #000;
    margin: 50px;
}

.block2{
   position: relative;
}

.block2:before{
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: -1px;
    width: 1px;
    background: #fff;
}