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).style.
property =
new style
The following example changes the style of a <p>
element:
<html>
<body>
<p id="p2">Hello World!</p>
<script>
document.getElementById("p2").style.color = "blue";
</script>
</body>
</html>
Try it Yourself »
The HTML DOM allows you to execute code when an event occurs.
Events are generated by the browser when "things happen" to HTML elements:
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:
<!DOCTYPE html>
<html>
<body>
<h1 id="id1">My Heading 1</h1>
<button type="button"
onclick="document.getElementById('id1').style.color = 'red'">
Click Me!</button>
</body>
</html>
Try it Yourself »
Visibility How to make an element invisible. Do you want to show the element or not?
For all HTML DOM style properties, look at our complete HTML DOM Style Object Reference.
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