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<!DOCTYPE html> <html> <head> <script src="/lib/jquery-1.12.2.min.js"></script> <script> $(document).ready(function(){ $("div span").css("background-color", "yellow"); }); </script> </head> <body> <h2>What will $("div span") select?</h2> <h4>This div element has two descendants, p and span:</h4> <div style="border:1px solid black;padding:10px;"> <p>This is a paragraph.</p> <span>This is a text inside a span.</span> </div> <h4>This div element has also two descendants, p and span:</h4> <div style="border:1px solid black;padding:10px;"> <p>This is a paragraph. <span>This is a span element, inside the paragraph.</span></p> </div> </body> </html>