<html> <head> <title>jQuery not example</title> <script type="text/javascript" src="jquery-1.9.1.js"></script> </head> <body> <h1>jQuery not example</h1> <ul class="class-ul"> <li>class-ul - #1</li> <li>class-ul - #2</li> <li>class-ul - #3</li> <li>class-ul - #4</li> <li>class-ul - #5</li> </ul> <ul id="id1"> <li>id1 - #1</li> </ul> <p class="class-p1"> class - #p1 </p> <p class="class-p2"> class - #p2 </p> <button>p:not(.class-p1)</button> <button>li:not(:only-child)</button> <button>li</button> <button>li:only-child</button> <button>li:not(:first-child)</button> <script type="text/javascript"> $("button").click(function () { var str = $(this).text(); $("li,p").css("background", "white"); $(str).css("background", "coral"); }); </script> </body> </html>