How to design a color change on click

Quick answer：

To design a color change on click, you can use HTML, CSS, and JavaScript. In HTML, create an element that will change color. In CSS, use the ':active' pseudo-class to define the color change when the element is clicked. JavaScript can be used for more complex interactions, such as dynamically changing the color of the element when clicked. This involves adding an event listener to the element for the 'click' event and then modifying its style property to change the color.