JSFiddle - React, Tailwind, and code Playground

by petroveg

HTML

<div class="menu">
	<ul class="menu-list">
		<li class="menu-item"><a href="#" class="menu-link">О компании</a></li>
		<li class="menu-item"><a href="#" class="menu-link">О мире</a></li>
	</ul>
</div>

CSS

.menu-list {
	list-style: none;
	display: inline-block;
	position: relative;
	margin: 0;
	padding: 20px 10px 0;
	font-size: 0;
	background: linear-gradient(rgba(0, 0, 0, .2), rgba(0, 0, 0, .05) 20%, rgba(0, 0, 0, .02));
}
.menu-list:after {
	content: "";
	display: block;
	height: 5px;
	margin: 0 -10px;
	background: linear-gradient(to left, rgba(0, 0, 0, .5), rgba(0, 0, 0, 0));
}
.menu-item {
	display: inline-block;
}
.menu-link {
	overflow: hidden;
	display: block;
	position: relative;
	height: 50px;
	padding: 0 40px;
	font: bolder 1rem / 60px sans-serif;
	text-decoration: none;
	color: inherit;
}
.menu-link:before {
	content: "";
	position: absolute;
	z-index: -1;
	top: 0;
	right: 0;
	left: 0;
	border-bottom: 50px solid #ffb600;
	border-left: 25px solid transparent;
	border-right: 20px solid transparent;
	transform-origin: 0 100%;
	transform: rotate(4deg);
}