W3.CSS Dropdowns
Dropdown Hover
The w3-dropdown-hover class defines an hoverable dropdown element.
The w3-dropdown-content class defines the dropdown part to be displayed.
Example
<div class="w3-dropdown-hover">
<button class="w3-btn w3-red">Hover Me!</button>
<div class="w3-dropdown-content w3-border">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</div>
Both the hoverable element part and the dropdown element can be any HTML element.
In the previous example the hoverable part was a <button>, and the dropdown part a <div>.
In the next example the hoverable part is a <p> element, and the dropdown part is a <span>:
Example
<div class="w3-dropdown-hover">
<p>Hover Me!
<span class="w3-dropdown-content w3-green">
Hello World!
</span>
</p>
</div>
Menu Dropdown
The w3-dropdown-hover class is perfect for dropdown navigation menus.
You will learn more about navigation bars in a later chapter.
Example
<ul class="w3-navbar w3-card-2 w3-light-grey">
<li><a href="#">Home</a></li>
<li><a href="#">Link 1</a></li>
<li class="w3-dropdown-hover">
<a href="#">Dropdown <i class="fa fa-caret-down"></i></a>
<div
class="w3-dropdown-content w3-white w3-card-4">
<a
href="#">Link 1</a>
<a href="#">Link
2</a>
<a href="#">Link 3</a>
</div>
</li>
</ul>
Try It Yourself »
Clickable Dropdown
The w3-dropdown-click class is similar to w3-dropdown-hover, except that the dropdown is opened by JavaScript.
Example
<div class="w3-dropdown-click">
<button onclick="myFunction()" class="w3-btn">Click Me</button>
<div id="Demo" class="w3-dropdown-content w3-card">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</div>
<script>
function myFunction() {
var x = document.getElementById("Demo");
if (x.className.indexOf("w3-show")
== -1)
x.className += " w3-show";
else
x.className = x.className.replace(" w3-show", "");
}
}
</script>
Image Dropdowns
Move the mouse over the image:
Example
<div class="w3-dropdown-hover">
<img src="img_fjords.jpg" alt="Norway" style="width:20%">
<div
class="w3-dropdown-content" style="width:300px">
<img src="img_fjords.jpg"
alt="Norway" style="width:100%">
</div>
</div>
Card Dropdowns
Move the mouse over one of the cities below:
London is the capital city of England.
It is the most populous city in the United Kingdom, with a metropolitan area of over 9 million inhabitants.
Tokyo is the capital city of Japan.
13 million inhabitants.
Example
<div class="w3-dropdown-hover">London
<div class="w3-dropdown-content
w3-card-4" style="width:250px">
<img src="img_london.png"
alt="London" style="width:100%">
<div
class="w3-container">
<p>London is the
capital city of England.</p>
<p>It is the
most populous city in the UK.</p>
</div>
</div>
</div>
Animated Dropdown
Use any of the w3-animate-classes to fade, zoom or slide in the dropdown content:
Example
<div class="w3-dropdown-click">
<button onclick="myFunction()" class="w3-btn">Click Me</button>
<div id="Demo" class="w3-dropdown-content
w3-animate-zoom">
<a href="#">Link 1</a>
<a href="#">Link 2</a>
<a href="#">Link 3</a>
</div>
</div>
