JSFiddle - React, Tailwind, and code Playground

HTML

<ul class="sf-menu">
	<li>
		<a href="">About Us &#9660;</a>
		<ul>
            <li>
                <a href="">Centre-Point of Web Projects</a>
            </li>
        </ul>
	</li>
	<li>
		<a href="">Branches &#9660;</a>
		<?php Core::getHook('block-branches'); ?>

    </li>
    </u>

CSS

/* Main */
.sf-menu {
    width: 100%;
    margin: 0;
    list-style: none;  
    background-color: #2D2D2D;
    border-bottom:6px solid #393939;
    z-index: 90;
    /*background-image: linear-gradient(#444, #111);*/
    
    
   /*border-radius: 50px;*/
   /* box-shadow: 0 2px 1px #9c9c9c;*/
  
   
}
 .sf-menu .active{
             background-color:#1B3E70;
             color:white;
        
        }
.sf-menu li {
    float: left;
    padding: 10px 0;
    margin: 0 0 0 2px;
    position: relative;
    box-shadow: 1px  0 #222222, 
                2px  0 #383838;
    
     z-index: 100;
}

.sf-menu a {
    float: left;
    height: 20px;
    padding: 0 25px;
    color: #DDDDDD;
   /* text-transform: uppercase;*/
    font: bold 12px/25px Arial, Helvetica;
    text-decoration: none;
    text-shadow: 0 1px 0 #000;
}


.sf-menu li:hover > a {
    color: #fafafa;
}

*html .sf-menu li a:hover { /* IE6 */
    color: #fafafa;
}

.sf-menu li:hover > ul {
    display: block;
}
.sf-menu li:last-child{
    box-shadow: none;
}


/* Sub-menu */
.sf-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;    
    display: none;
    position: absolute;
    top: 35px;
    left: 0;
    z-index: 99999;    
    background-color: #2D2D2D;   
    border-bottom:none;
   /* background-image: linear-gradient(#444, #111);   */ 
    /*-moz-border-radius: 5px;*/
    /*border-radius: 5px;*/
    
}

.sf-menu ul li {
    float: none;
    margin: 0;
    padding: 0;
    display: block;  
    box-shadow: 0 1px 0 #222222,
                0 2px 0 #383838;
    border-bottom:none;
}


.sf-menu ul a {    
    padding: 10px;
    height: auto;
    line-height: 1;
    display: block;
    white-space: nowrap;
    float: none;
    text-transform: none;
}
.sf-menu ul a:hover{
  margin-left:10px;
}
*html .sf-menu ul a { /* IE6 */   
    height: 10px;
    width: 150px;
}

*:first-child+html .sf-menu ul a { /* IE7 */    
    height: 10px;
    width: 150px;
   
}
/* active  menu*/

        
        /*end...

JavaScript

<script>
$('.sf-menu a').click(function(){
        $(this).addClass('active').siblings().removeClass('active');
        });
</script>