The :header selector selects all header elements: <h1> to <h6>.
$(":header")
Select all header elements (h1 to h6):
<!DOCTYPE html> <html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script> <script> $(document).ready(function(){ $(":header").css("background-color", "yellow"); });/*w w w .j av a2s.c o m*/ </script> </head> <body> <h1>Welcome to My Homepage</h1> <h2>My Fantastic Homepage</h2> <h3>It's amazing!</h3> <p class="intro">This is a test.</p> <p>I am from java2s.com.</p> <p>This is another test.</p> <p>Who is your favourite:</p> <ul id="choose"> <li>Javascript</li> <li>HTML</li> <li>CSS</li> </ul> </body> </html>