A Pen by Joe Watkins.

Demo-Flexbox-2.markdown

Demo Flexbox 2

A Pen by Joe Watkins on CodePen.

License.

index.html

<ul class="navigation">
  <li><a href="#">Home</a></li>
  <li><a href="#">About</a></li>
  <li><a href="#">Products</a></li>
  <li><a href="#">Contact</a></li>
</ul>

style.scss

@import "compass";
.navigation {
  list-style: none;
  margin: 0; 
  
  background: deepskyblue;
  border-bottom: 2px solid hotpink;
  box-shadow: 0 3px 2px rgba(0,0,0,0.1);
  
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  
  -webkit-flex-flow: row wrap;
  justify-content: flex-end;
}

.navigation a {
  color: #333;
  text-decoration: none;
  display: block;
  padding: 15px;
  color: white;
  font-weight: bold;
}

.navigation a:hover {
  background: darken(deepskyblue, 2%);
}

@media all and (max-width: 800px) {
  .navigation {
    justify-content: space-around;
  }
}

@media all and (max-width: 600px) {
  .navigation {
    flex-flow: column wrap;
    padding: 0;
  }
  
  .navigation a { 
    text-align: center; 
    padding: 10px;
    border-top: 1px solid rgba(255,255,255,0.3); 
    border-bottom: 1px solid rgba(0,0,0,0.1); 
  }

  
  .navigation li:last-of-type a {
    border-bottom: none;
  }
}