Changing HTML Style

The HTML DOM allows JavaScript to change the style of HTML elements.

To change the style of an HTML element,

use this syntax:

document.getElementById(id) = new style

The following example changes the style of a <p> element:


Using Events

The HTML DOM allows you to execute code when an event occurs.

Events are generated by the browser when "things happen" to HTML elements:

An element is clicked on

The page has loaded

Input fields are changed

You will learn more about events in the next chapter of this tutorial.

This example changes the style of the HTML element with id="id1", when the user clicks a button: