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<!DOCTYPE html> <html> <head> <script src="/lib/jquery-1.12.2.min.js"></script> <script> $(document).ready(function(){ $("div:not(:has(h1))").css("background-color", "yellow"); }); </script> </head> <body> <div> <h1>This is a heading (h1)</h1> <p>This is a paragraph.</p> </div> <div> <h2>This is a heading (h2)</h2> <p>This is a paragraph.</p> </div> <div> <h3>This is a heading (h3)</h3> <p>This is a paragraph.</p> </div> </body> </html>