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CSS Dropdowns

Create a hoverable dropdown with CSS.



Demo: Dropdown Examples

 

Move the mouse over the examples below:

Basic Dropdown

 

Create a dropdown box that appears when the user moves the mouse over an element.

Example

<style>
.dropdown {
    position : relative;
    display: inline-block;
}

.dropdown-content {
    display : none;
    position : absolute;
    background-color : #f9f9f9;
    min-width : 160px;
    box-shadow : 0px 8px 16px 0px rgba(0,0,0,0.2);
    padding : 12px 16px;
    z-index : 1;
}

.dropdown:hover .dropdown-content {
    display : block;
}
</style>

<div class="dropdown">
  <span>Mouse over me</span>
  <div class="dropdown-content">
    <p>Hello World! </p>
  </div>
</div>
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Example Explained

 

HTML) Use any element to open the dropdown content, e.g. a <span>, or a <button> element.

Use a container element (like <div>) to create the dropdown content and add whatever you want inside of it.

Wrap a <div> element around the elements to position the dropdown content correctly with CSS.

CSS) The .dropdown class use position:relative, which is needed when we want the dropdown content to be placed right below the dropdown button (using position:absolute).

The .dropdown-content class holds the actual dropdown content. It is hidden by default, and will be displayed on hover (see below). Note the min-width is set to 160px. Feel free to change this. Tip: If you want the width of the dropdown content to be as wide as the dropdown button, set the width to 100% (and overflow:auto to enable scroll on small screens).

Instead of using a border, we have used the CSS3 box-shadow property to make the dropdown menu look like a "card".

The :hover selector is used to show the dropdown menu when the user moves the mouse over the dropdown button.

Dropdown Menu

 

Create a dropdown menu that allows the user to choose an option from a list:

This example is similar to the previous one, except that we add links inside the dropdown box and style them to fit a styled dropdown button:

Example

<style>
/* Style The Dropdown Button */
.dropbtn {
    background-color: #4CAF50;
    color : white;
    padding: 16px;
    font-size : 16px;
    border: none;
    cursor : pointer;
}

/* The container <div> - needed to position the dropdown content */
.dropdown {
    position : relative;
    display : inline-block;
}

/* Dropdown Content (Hidden by Default) */
.dropdown-content {
    display : none;
    position: absolute;
    background-color : #f9f9f9;
    min-width: 160px;
    box-shadow : 0px 8px 16px 0px rgba(0,0,0,0.2);
}

/* Links inside the dropdown */
.dropdown-content a {
    color : black;
    padding : 12px 16px;
    text-decoration : none;
    display : block;
}

/* Change color of dropdown links on hover */
.dropdown-content a:hover {background-color : #f1f1f1}

/* Show the dropdown menu on hover */
.dropdown:hover .dropdown-content {
    display : block;
}

/* Change the background color of the dropdown button when the dropdown content is shown */
.dropdown:hover .dropbtn {
    background-color : #3e8e41;
}
</style>

<div class="dropdown">
  <button class="dropbtn">Dropdown</button>
  <div class="dropdown-content">
    <a href="#">Link 1</a>
    <a href="#">Link 2</a>
    <a href="#">Link 3</a>
  </div>
</div>
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Right-aligned Dropdown Content



If you want the dropdown menu to go from right to left, instead of left to right, add right: 0;

Example

.dropdown-content {
    right : 0;
}
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More Examples

Example

Dropdown Image

How to add an image and other content inside the dropdown box.

Hover over the image:


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Example

Dropdown Navbar

How to add a dropdown menu inside a navigation bar.

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