Show Output
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Example of CSS z-index property</title> <style> div { top: 30px; left: 30px; width: 100px; height: 100px; position: absolute; } div.red { background: #ff0000; z-index: 1; } div.green { background: #00ff00; z-index: 2; } div.blue { background: #0000ff; z-index: 3; } </style> </head> <body> <div class="red"> <div class="green"> <div class="blue"></div> </div> </div> </body> </html>
