JSFiddle - React, Tailwind, and code Playground

HTML

<h1>Arinden - Боря </h1>

CSS

h1 { vertical-align: middle;white-space: nowrap; overflow: hidden;}
h1:after {
    display: inline-block;
    content: '';
    height: 1px;
    width: 100%;
    position: relative;
    vertical-align: middle;
    background: black;
    margin-left: 10px;
}