:header Selector

jQuery

previous page next page

:header Selector

Categories: Selectors > Basic Filter | Selectors > jQuery Extensions

header selector

Description: Selects all elements that are headers, like h1, h2, h3 and so on.

  • version added: 1.2jQuery( ":header" )

Additional Notes:

  • Because :header is a jQuery extension and not part of the CSS specification, queries using :header cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. To achieve the best performance when using :header to select elements, first select the elements using a pure CSS selector, then use .filter(":header").

Example:

Adds a background and text color to all the headers on the page.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
                                  

                                    

                                      
                                        <!DOCTYPE html>
                                      
                                    

                                  

                                  

                                    

                                      
                                        <html>
                                      
                                    

                                  

                                  

                                    

                                      
                                        <head>
                                      
                                    

                                  

                                  

                                    

                                        <style>
                                    

                                  

                                  

                                    

                                        body { font-size: 10px; font-family: Arial; }
                                    

                                  

                                  

                                    

                                        h1, h2 { margin: 3px 0; }
                                    

                                  

                                  

                                    

                                        </style>
                                    

                                  

                                  

                                    

                                        <script src="http://code.jquery.com/jquery-latest.js"></script>
                                    

                                  

                                  

                                    

                                      
                                        </head>
                                      
                                    

                                  

                                  

                                    

                                      
                                        <body>
                                      
                                    

                                  

                                  

                                    

                                        <h1>Header 1</h1>
                                    

                                  

                                  

                                    

                                       
                                    

                                  

                                  

                                    

                                        <p>Contents 1</p>
                                    

                                  

                                  

                                    

                                        <h2>Header 2</h2>
                                    

                                  

                                  

                                    

                                        <p>Contents 2</p>
                                    

                                  

                                  

                                    

                                      
                                        <script>
                                        $(":header").css({ background:'#CCC', color:'blue' });
                                        </script>
                                      
                                    

                                  

                                  

                                    

                                       
                                    

                                  

                                  

                                    

                                      
                                        </body>
                                      
                                    

                                  

                                  

                                    

                                      
                                        </html>
 POWERED BYHERONOTE
previous page start next page