Pseudo-class :not in jQuery
The pseudo-class not excludes those elements from those found that match the specified selector.
In the next task, let's get and color in red all the headings NOT with class zzz:
$(':headers:not(.zzz)').css('color', 'red');
Get and color red all headings NOT with class test.
Obtain and color red all h2 NOT with class test.