Codelab Editor

Free Online HTML Editor

<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8" />
		<title>Swap Box Backgrounds with jQuery</title>
		<style>
			.container {
				display: flex;
				gap: 20px;
				margin-bottom: 20px;
			}
			.box {
				width: 150px;
				height: 150px;
				color: #fff;
				display: flex;
				align-items: center;
				justify-content: center;
				font-weight: bold;
				border-radius: 4px;
			}
			.box1 {
				background-color: #3498db;
			}
			.box2 {
				background-color: #e67e22;
			}
		</style>
		<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
	</head>
	<body>
		<h2>Using Vanilla JavaScript DOMContentLoaded with jQuery</h2>
		<p>Click the button below to see how jQuery works inside a native DOM ready event.</p>

<h3>-- Swap Box Backgrounds Example</h3>
		<div class="container">
			<div class="box box1">Box 1</div>
			<div class="box box2">Box 2</div>
		</div>
		<button id="swapBtn">Swap Backgrounds</button>

Editor Commands

Ctrl

Find

Ctrl

Find Next

Ctrl

⇧

Find Previous

Ctrl

⇧

Find & Replace

Ctrl

]

Indent Code Right

Ctrl

[

Indent Code Left

⇧

Tab

Auto Indent Code

Ctrl

Line Comment

Ctrl

Alt

Block Comment

TutsInsider Actions

Alt

Run Code

Ctrl

Copy Editor Code

Ctrl

Select All Editor Code

Ctrl

Save/Download

Ctrl

Alt

Rotate

Ctrl

Alt

Switch Theme

Ctrl

⇧

Open Console

Esc

Close Console