Create CSS Toggle Switch

Introduction

In this lab, we will learn how to create a toggle switch using only CSS. The purpose of this lab is to teach you how to use the :checked pseudo-class selector, ::after pseudo-element, and position properties to create an interactive and visually appealing toggle switch. By the end of this lab, you will have a better understanding of how to use CSS to add interactivity to your web pages.

Skills Graph

Toggle Switch

index.html and style.css have already been provided in the VM.

Here's a more concise and clearer version of the content:

To create a toggle switch with CSS only, follow these steps:

1. Associate the <label> with the checkbox <input> element using the for attribute.
2. Use the ::after pseudo-element of the <label> to create a circular knob for the switch.
3. Use the :checked pseudo-class selector to change the position of the knob, using transform: translateX(20px) and the background-color of the switch.
4. Visually hide the <input> element using position: absolute and left: -9999px.

Here's the HTML code:

<input type="checkbox" id="toggle" class="offscreen" />
<label for="toggle" class="switch"></label>

Here's the CSS code:

.switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 20px;
  background-color: rgba(0, 0, 0, 0.25);
  border-radius: 20px;
  transition: all 0.3s;
}

.switch::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-radius: 18px;
  background-color: white;
  top: 1px;
  left: 1px;
  transition: all 0.3s;
}

input[type="checkbox"]:checked + .switch::after {
  transform: translateX(20px);
}

input[type="checkbox"]:checked + .switch {
  background-color: #7983ff;
}

.offscreen {
  position: absolute;
  left: -9999px;
}

Please click on 'Go Live' in the bottom right corner to run the web service on port 8080. Then, you can refresh the Web 8080 Tab to preview the web page.

Summary

Congratulations! You have completed the Toggle Switch lab. You can practice more labs in LabEx to improve your skills.