JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container">
<nav>
        <ul>
                <li><a href="">О КОМПАНИИ</a></li>
                <li><a href="">МАГАЗИНЫ</a></li>
                <li><a href="">ДОСТАВКА</a></li>                           
                <li><a href="">ЗАКАЗ</a></li>
                <li><a href="">Контакты</a></li>
        </ul>
</nav>

CSS

/*Menu1*/
nav  {
                display: block;
                width: 100%;
                overflow: hidden;  
}
nav ul {
 				 padding:0;
                float: left;
                list-style: none;
 				 width:100%;
}
nav li {
                float:left;
  				  width: 20%;
}
nav a {			
				text-align: center;
   				 display: block;
                padding: .8em 1.5em;
                text-decoration: none;
				  color: #555;
                text-shadow: 0 1px 0 rgba(255,255,255,.5);
                font: bold 1.1em/1 'trebuchet MS', Arial, Helvetica;
                letter-spacing: 1px;
                text-transform: uppercase;
                border-width: 1px;
                border-style: solid;
                border-color: #fff #ccc #999 #eee;
                background: #c1c1c1;
                background: -moz-linear-gradient(#f5f5f5, #c1c1c1);
                background: -webkit-gradient(linear, left top, left bottom, from(#f5f5f5), to(#c1c1c1));
                background: -webkit-linear-gradient(#f5f5f5, #c1c1c1);
                background: -o-linear-gradient(#f5f5f5, #c1c1c1);
                background: -ms-linear-gradient(#f5f5f5, #c1c1c1);
                background: linear-gradient(#f5f5f5, #c1c1c1);
}
nav a:hover, nav a:focus {
                outline: 0;
                color: #fff;
                text-shadow: 0 1px 0 rgba(0,0,0,.2);
                background: #fac754;
                background: -moz-linear-gradient(#fac754, #f8ac00);
                background: -webkit-gradient(linear, left top, left bottom, from(#fac754), to(#f8ac00));
                background: -webkit-linear-gradient(#fac754, #f8ac00);
                background: -o-linear-gradient(#fac754, #f8ac00);
                background: -ms-linear-gradient(#fac754, #f8ac00);
                background: linear-gradient(#fac754, #f8ac00);
}
nav a:active {
                -moz-box-shadow: 0 0 2px 2px rgba(0,0,0,.3) inset;
                -webkit-box-shadow: 0 0 2px 2px...