JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Задание первое</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="wrapper">

    <section>
        <div class="inside">
            <div class="content">Рабочий эскиз</div>
        </div>
    </section>
        
</div>
</body>
</html>

CSS

.wrapper {
    margin: 200px auto 0;
    width: 400px;
    height: 70px;
}

section{
    width: 368px;
    height: 40px;
    border-left: 1px solid #666666;
    border-right: 1px solid #666666;
    position: relative;
    padding: 15px 0;
}

.inside {
    width: 368px;
    height: 40px;
    border-top: 1px solid #666666;
    border-bottom: 1px solid #666666;
    position: absolute;
    margin: 0 -16px;
    padding: 0 16px;
}

.content {
    background: #f0f0f0;
    height: 30px;
    padding: 10px 0 0 10px;
}