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<!DOCTYPE html> <html> <head> <link id="myLink" rel="icon" href="demo_icon.gif" type="image/gif" sizes="16x16"> </head> <body> <h2>Hello world!</h2> <p>Open this page in a <a href="tryhtml5_link_sizes.htm" target="_blank">new window</a> to see the favicon.</p> <p><b>Note:</b> The sizes attribute is currently not supported in any of the major browsers.</p> <p>Click the "Try it" button to return the value of the sizes attribute of the link.</p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myLink").sizes; document.getElementById("demo").innerHTML = x; } </script> </body> </html>