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<!DOCTYPE html> <html> <head> <script src="/lib/jquery-1.12.2.min.js"></script> <script> $(document).ready(function(){ $("div p").first().css("background-color", "yellow"); }); </script> </head> <body> <h1>Welcome to My Homepage</h1> <div style="border:1px solid black"> <p>This is a paragraph in a div.</p> <p>This is a paragraph in a div.</p> </div><br> <div style="border:1px solid black"> <p>This is a paragraph in another div.</p> <p>This is a paragraph in another div.</p> </div> <p>This is also a paragraph.</p> </body> </html>