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HTML

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CSS

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CSS Base

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JavaScript

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HTML 

              
                <nav>
  <ul class="nav-list">
    <li class="nav-item drop-down">Link 1
      <ul>
        <li> <a href="#">sub 1</a></li>
        <li><a href="#">sub 2</a></li>
        <li><a href="#">sub 3</a></li>
      </ul>
    </li>
    <li class="nav-item drop-down"><a href="#">Link 2</a>
      <ul>
        <li> <a href="#">sub 1</a></li>
        <li><a href="#">sub 2</a></li>
        <li><a href="#">sub 3</a></li>
      </ul>
    </li>
    <li class="nav-item"> <a href="#">Link 3</a></li>
    <li class="nav-item drop-down">Link 4
      <ul>
        <li class="slide-out">sub 1 >
          <ul>
            <li> <a href="#">sub 1-1</a></li>
            <li><a href="#">sub 1-2</a></li>
            <li><a href="#">sub 1-3</a></li>
            <li><a href="#">sub 1-4</a></li>
          </ul>
        </li>
        <li><a href="#">sub 2</a></li>
        <li><a href="#">sub 3</a></li>
      </ul>
    </li>
  </ul>
</nav>
<main>
  <h1>Drop Down Nav Menus</h1>
  <p>The nav menu is composed of an unordered list containing multiple list items.  Each list item contains an anchor tag.</p>
  <p>If you want the menu item to be a drop down, instead of an anchor tag, the &lt;li&gt; tag will instead have another unordered list.  It's also possible to have both an anchor and an unordered list.</p>
  <ul>
    <li>Link 1 is an example of a dropdown with just an unordered list</li>
    <li>Link 2 is an example of a dropdown with both an anchor and an unordered list</li>
    <li>Link 3 is just a normal nav link</li>
    <li>Link 4 - sub 1 is a secondary slide out nav</li>
  </ul>
  <p>This is just a basic example, so I didn't include animations.  If you prefer to animate the display of the drop-down or slide-out menus, you can do that instead of using <code>display:none</code> or <code>display:block</code></p>
</main>
!

CSS 

              
                /*
  top styling is just to make it prettier, scroll
  down to see the relevant styles.
*/
* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

a {
  text-decoration: none;
  color: inherit;
}

li {
  list-style: none;
}

ul {
  padding: 0;
}

nav {
  background: grey;
}

nav ul {
  background: grey;
  width: 100%;
}

nav li {
  color: white;
  text-shadow: 1px 1px 2px black;
  padding: 20px;
  cursor: pointer;
  white-space: nowrap;
}

nav li:hover {
  background: orangered;
}

.nav-list {
  margin: 0;
  display: flex;
}

main {
  padding: 0 2em;
}
/*
  Above this line is just styling to prettify the nav.
  Code for the functionality of the nav is below 
/*


/* Need position relative so we can position the drop down absolutely */
.drop-down {
  position: relative;
}

.drop-down > ul {
  /* position the drop down below the main nav item */
  position: absolute;
  top: 100%;
  left: 0;
  
  /* base style to make drop-down hidden */
  display: none;
}

/* show the nav item when hovered */
.drop-down:hover > ul {
  display: block;
}

/* 
  Slide Out Menu
  works the same as drop down, except the positioning
  is to the right of the parent menu
*/
.slide-out {
  position: relative;
}

.slide-out > ul {
  position: absolute;
  overflow: hidden;
  
  left: 100%;
  top: 0;
 
  display: none;
}

.slide-out:hover > ul {
  display: block;
}
!

JS
!
999px

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