JSFiddle - React, Tailwind, and code Playground

HTML

<ul class="menu">
    <li><a href="#">Главная</a></li>
    <li><a href="#">Услуги</a></li>
    <li><a href="#">Запчасти</a></li>
    <li><a href="#">Цены</a></li>
    <li><a href="#">Отзывы</a></li>
    <li><a href="#">Контакты</a></li>
</ul>

CSS

body {
	font: 16px/24px Tahoma, sans-serif;
}
ul.menu {
	font-size: 14px;
	list-style: none;
	padding: 0;
	margin: 0;
	overflow: hidden;
}

ul.menu > li {
	float: left;
	position: relative;
}

ul.menu > li > a {
	background-color: #1a73b7;
	min-width: 150px;
	text-align: center;
	color: #fff;
	padding: 0 10px 0 17px;
	text-decoration: none;
	border-right: none;
  	height: 45px;
  	line-height: 45px;
  	display: block;
	position: relative;
	font-weight: bold;
 /* IE6-8 */

}




ul.menu > li > a::after {content:"";
display:block;
border-right:1px solid #1b7bb8;
width:12px;
-webkit-transform:skewX(-15deg);
-moz-transform:skewX(-15deg);
-o-transform:skewX(-15deg);
-ms-transform:skewX(-15deg);
transform:skewX(-15deg);
position:absolute;
top:0;left:100%;
height:100%;
z-index:1;
margin-left:-6px;
background-color:#1a73b7;

}

ul.menu > li > a, ul.menu > li > a::after {
background: rgb(26,125,190); /* Old browsers */
/* IE9 SVG, needs conditional override of 'filter' to 'none' */
background: url(data:image/svg+xml;base64,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);
background: -moz-linear-gradient(top,  rgb(26,125,190) 0%, rgb(17,85,156) 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgb(26,125,190)), color-stop(100%,rgb(17,85,156))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top,  rgb(26,125,190) 0%,rgb(17,85,156) 100%); /*...