<link href='https://fonts.googleapis.com/css?family=Roboto:400,300,100' rel='stylesheet' type='text/css'>

<div class="fullWidth header">
  <div class="container">
    <div class="col-xs-12 col-sm-2 col-md-3 col-md-offset-1 col-lg-4 col-lg-offset-1 header-logo"><a href="#" class="header-logo-name">WHITE.</a></div>
    <div class="col-xs-12 col-sm-10 col-md-8 col-lg-6 header-nav">
      <ul>
        <li>
          <a href="#" class="header-nav-link header-nav-top-link">Home</a>
        </li>
        <li>
          <a href="#" class="header-nav-link header-nav-top-link">About Us</a>
          <ul>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Who are we?</a></li>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Careers</a></li>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Press</a></li>
          </ul>
        </li>
        <li>
          <a href="#" class="header-nav-link header-nav-top-link">Services</a>
          <ul>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Analytics and CRO</a></li>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Branded Content</a></li>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Pay Per Click</a></li>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Search Engine Optimisation</a></li>
          </ul>
        </li>
        <li>
          <a href="#" class="header-nav-link header-nav-top-link">Case Studies</a>
          <ul>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Trafalgar Tours</a></li>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Nominet</a></li>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Miele GB</a></li>
            <li><a href="#" class="header-nav-link header-nav-sub-link">M&G Investments</a></li>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Deloitte LLP</a></li>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Christie+Co</a></li>
            <li><a href="#" class="header-nav-link header-nav-sub-link">Audley Travel</a></li>
          </ul>
        </li>
        <li>
          <a href="#" class="header-nav-link header-nav-top-link">Blog</a>
        </li>
        <li>
          <a href="#" class="header-nav-link header-nav-top-link">Contact Us</a>
        </li>
      </ul>
    </div>
  </div>
</div>
body {margin:0;padding:0;}
.header {background-color:#111;}

* {transition:all 0.3s;-webkit-transition:all 0.3s;font-family: 'Roboto', sans-serif;}
.header-nav {position:relative;float:left;margin:0 auto;}
.header-nav ul {position:absolute;float:left;list-style:none;margin:0;padding:0;}
.header-nav ul li {position:relative;float:left;border-left:4px solid rgba(224, 52, 106, 1);}
.header-nav ul li ul {margin-left:-4px;}
.header-nav > ul {position:relative;}
.header-nav > ul > li:last-child {border-right:4px solid rgba(224, 52, 106, 1);}

.header-nav > ul > li > .header-nav-link + ul li {width:150px;opacity:0;height:0;margin-top:-48px;border-bottom:2px solid rgba(224, 52, 106, 1);}
.header-nav > ul > li:hover .header-nav-link + ul > li {opacity:1;height:auto;margin-top:0;}
.header-nav .header-nav-link {float:left;text-decoration:none;color:#FFF;font-weight:300;padding:15px;width:100%;}
.header-nav .header-nav-link:hover {background-color:rgba(224, 52, 106, 1) !important;}

.header-nav .header-nav-top-link {padding: 25px 15px 25px;}
.header-nav ul li:hover .header-nav-link {background-color:#333;}
.header-nav ul li:hover .header-nav-top-link {background-color:rgba(224, 52, 106, 0.8);}

.header-nav > ul > li > .header-nav-top-link + ul {top:70px;}
.header-nav > ul > li:hover .header-nav-sub-link {background-color:#333;}

.header-logo > .header-logo-name {float:left;color:#FFF;font-size:30px;font-weight:bold;padding:14px 0;}
.header-logo > .header-logo-name:hover {text-decoration:none;}

@media (max-width: 767px) {
  .header-nav > ul > li {width:100%;border-right:4px solid rgba(224, 52, 106, 1);border-bottom:2px solid rgba(224, 52, 106, 1);}
  .header-nav > ul > li:first-child > a {font-size:18px;font-weight:400;}
  .header-nav > ul > li:last-child {border-bottom:none;}
  .header-nav > ul > li > .header-nav-top-link + ul {position:relative;top:0px;left:4px;width:100%;}
  .header-nav > ul > li > .header-nav-top-link + ul li {position:relative;float:left;border-left:none;width:100%;}
}

External CSS

  1. https://netdna.bootstrapcdn.com/bootstrap/3.1.0/css/bootstrap.css

External JavaScript

  1. //cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js