JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper">
    <div class="invisible-red-line">
        <span class="white-text-on-red-bg">Отзывы о нас</span>
    </div>
</div>

CSS

.wrapper {    
    width: 80%;
}

.invisible-red-line {
    border-bottom: 5px solid red;
    margin-left: 20%;
}

.white-text-on-red-bg {
    display: inline-block;
    background-color: red;
    color: white;
    padding: 0.5em 1em;
}