JSFiddle - React, Tailwind, and code Playground

HTML

<div class="super-border">пример блока</div>
<div class="super-border">пример блока</div>

SCSS

body {
    background-color: #333;
}
div {
    margin: 50px;
    padding: 5px;
}
.super-border {
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    border-radius: 5px;
    border: 2px outset #666;
    -moz-box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
    -webkit-box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
    background-color: #888
}