Menu Fixed Responsive

HTML

<link href='http://fonts.googleapis.com/css?family=Abel' rel='stylesheet' type='text/css' />
<div class='fixed'>


  <header class="header-fixed">

    <div class="header-limiter">

      <h1><a href="#">Company<span>logo</span></a></h1>

      <nav>
        <a href="#">Home</a>
        <a href="#" class="selected">Blog</a>
        <a href="#">Pricing</a>
        <a href="#">About</a>
        <a href="#">Faq</a>
        <a href="#">Contact</a>
      </nav>

    </div>

  </header>
</div>

CSS

body {
  background-color: #EFF3FA;
}

.header-fixed {
  background-color: #fff;
  border-bottom: 1px solid #c2c9d4;
  padding: 20px 40px;
  height: 80px;
  color: #444;
  box-sizing: border-box;
  top: -100px;
  -webkit-transition: top 0.3s;
  transition: top 0.3s;

}

.header-fixed .header-limiter {
  max-width: 1200px;
  text-align: center;
  margin: 0 auto;
  position: fixed;
}

/*	The header placeholder. It is displayed when the header is fixed to the top of the
	browser window, in order to prevent the content of the page from jumping up. */

.header-fixed-placeholder {
  height: 80px;
  display: none;
}

/* Logo */

.header-fixed .header-limiter h1 {
  float: left;
  font: normal 28px 'Abel', sans-serif;
  line-height: 40px;
  margin: 0;
}

.header-fixed .header-limiter h1 span {
  color: #5383d3;
}

/* The navigation links */

.header-fixed .header-limiter a {
  color: red;
  text-decoration: none;
}

.header-fixed .header-limiter nav {
  font: 18px 'Abel', sans-serif;
  line-height: 40px;
  float: right;
}

.header-fixed .header-limiter nav a {
  display: inline-block;
  padding: 0 5px;
  text-decoration: none;
  color: #444;
  opacity: 0.9;
}

.header-fixed .header-limiter nav a:hover {
  opacity: 1;
}

.header-fixed .header-limiter nav a.selected {
  color: #608bd2;
  pointer-events: none;
  opacity: 1;
}

/* Fixed version of the header */

body.fixed .header-fixed {
  padding: 10px 40px;
  height: 50px;
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  z-index: 1;
}

body.fixed .header-fixed-placeholder {
  display: block;
}

body.fixed .header-fixed .header-limiter h1 {
  font-size: 24px;
  line-height: 30px;
}

body.fixed .header-fixed .header-limiter nav {
  line-height: 28px;
  font-size: 13px;
}

/* Making the header responsive */

@media all and (max-width: 600px) {
  .header-fixed {
    padding: 20px 0;
    height: 75px;
  }
  .header-fixed .header-limiter h1 {
    float: none;
    margin: -8px 0 10px;
    text-align: center;
   ...