JSFiddle - React, Tailwind, and code Playground

by Alexey Lisovy

HTML

<div>Каталог</div>

CSS

div
        {
            width: 200px;
            height: 40px;
            background: #35d;
            font: 18px Arial Helvetica sans-serif;
            color: white;
            position: absolute; /*центрирую блок, эта и ещё 2 строчки*/
            top: 50%; left: 50%;
            transform: translate(-50%, -50%);
            text-align: center; /*центрирую текст, эта и след строчка*/
            line-height: 40px;
            box-sizing: border-box;
            border-top: 1px dotted white;
            border-left: 1px dotted white;
            box-shadow: -4px -4px 0 4px #35d;
        }
div::before
        {
            content: '';
            display: block;
            position: absolute;
            bottom: 0;
            left: -9px;
            width: 0;
            border-left: 4px solid #FFF;
            border-bottom: 4px solid #FFF;
            border-top: 4px solid #35d;
            border-right: 4px solid #35d;
        }
div::after
        {
            content: '';
            display: block;
            position: absolute;
            top: -9px;
            right: 0;
            width: 0;
            border-left: 4px solid #35d;
            border-bottom: 4px solid #35d;
            border-top: 4px solid #fff;
            border-right: 4px solid #fff;            
        }