How do I create a CSS-only sliding content panel?

Creating a CSS-only Sliding Content Panel

In this blog post, we will learn how to create a CSS-only sliding content panel using the power of CSS3 transitions and the checkbox hack. This sliding panel is useful for displaying additional content, such as a navigation menu or a contact form, without using any JavaScript.

Step 1: HTML Structure

To begin, let’s create the HTML structure for our sliding panel. We will have a checkbox, a label (which will act as the toggle button), and the content panel itself.

<!-- HTML -->
<!DOCTYPE html>
  <link rel="stylesheet" href="styles.css">
  <input type="checkbox" id="sliding-panel-toggle" />
  <label for="sliding-panel-toggle" class="toggle-button">Toggle Panel</label>
  <div class="sliding-panel">
    <div class="panel-content">
      <!-- Your panel content goes here -->
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</p>

Step 2: Basic CSS Styles

Now, let’s add some basic CSS styles for the panel and the toggle button.

/* CSS */
body {
font-family: Arial, sans-serif;

.toggle-button {
display: inline-block;
background-color: #007bff;
color: white;
padding: 10px 20px;
cursor: pointer;
text-decoration: none;
border-radius: 5px;

.sliding-panel {
position: fixed;
top: 0;
right: -300px; /* Hide the panel initially /
width: 300px;
height: 100%;
background-color: #f8f9fa;
transition: right 0.3s ease; / Slide-in transition effect */

.panel-content {
padding: 20px;

Step 3: CSS Checkbox Hack

Now, let’s implement the checkbox hack to toggle the sliding panel. We will use the :checked pseudo-class to apply the panel styles when the checkbox is checked.

/* CSS /
#sliding-panel-toggle {
display: none; / Hide the checkbox */

#sliding-panel-toggle:checked ~ .sliding-panel {
right: 0; /* Show the panel when the checkbox is checked */

Step 4: Optional Enhancements

You can further enhance the panel by adding a close button and smooth transitions for the toggle button’s hover and active states.

<!-- HTML -->
<button class="close-button" onclick="document.getElementById('sliding-panel-toggle').checked = false;">Close</button>
/* CSS */
.toggle-button:hover {
background-color: #0056b3;

.toggle-button:active {
background-color: #004085;

.close-button {
display: block;
background-color: #dc3545;
color: white;
padding: 5px 10px;
cursor: pointer;
text-decoration: none;
border-radius: 5px;
width: 100px;
margin: 10px auto;

That’s it! You now have a CSS-only sliding content panel that can be easily integrated into any website. This solution is lightweight and easy to customize, allowing you to create engaging user experiences without relying on JavaScript.

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