JSFiddle - React, Tailwind, and code Playground

HTML

<ul class="add-nav">
								<li><a href="#">shape</a></li>
								<li class="active color"><a  href="#">color</a></li> 
								<li><a href="#">pattern</a></li>
								<li><a href="#">size</a></li>
								<li><a href="#">overall</a></li> 
							</ul>
							<ul class="category-nav">
								<li class="active"><a href="#">all</a></li>
								<li><a href="#">red</a></li>
								<li><a href="#">orange</a></li>
								<li><a href="#">yellow</a></li>
								<li><a href="#">green</a></li>
								<li><a href="#">blue</a></li>
								<li><a href="#">purple</a></li>
							</ul>

CSS

.add-nav{
	width:100%;
	padding:0;
	margin:10px 0 0px;
	list-style:none;
	border-bottom:1px solid #cecece;
	display:table;
	text-transform:uppercase;
	font-size:10px;
	line-height:14px;
}
.add-nav li{
	text-align:center;
	display:table-cell;
	vertical-align:bottom;
}
.add-nav li a{
	display:block;
	padding:21px 5px 16px;
	color:#636363;
}
.add-nav li a:hover,
.add-nav .active a{
	font-weight:700;
	text-decoration:none;
	color:#272727;
	background:#f2f2f2;
}
.category-nav{
	padding:5px 13px 7px;
	margin:0 0 0px;
	list-style:none;
	background:#f2f2f2;
	width:100%;
	font-size:10px;
	font-variant:small-caps;
	display:table;
	box-sizing:border-box;
	-moz-box-sizing:border-box;
	-webkit-box-sizing:border-box;
}
.category-nav li{
	text-align:center;
	display:table-cell;
	vertical-align:bottom;
}
.category-nav li a{color:#636363;}
.category-nav li a:hover{
	text-decoration:none;
	color:#ff6699;
}
.category-nav{
    display:none;
}
.add-nav li #color:hover ~ .category-nav{
    display:block;
}
.category-nav .active a{
	color:#ff6699;
	font-weight:700;
}