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<!DOCTYPE html> <html> <head> <title>jQuery .animate() Method - Custom Properties</title> <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script> <script> $(document).ready(function(){ $.fx.step.custom = function(fx){ $(fx.elem).css("backgroundColor", "rgb(" + Math.floor(fx.now) + ",0,0)"); }; $("#animateButton").click(function(){ $("div").animate({custom: 255}, 1000); }); }); </script> </head> <body> <div style="background-color: rgb(0,0,0); padding: 10px;">This is a div element.</div> <button id="animateButton">Animate with Custom Properties</button> </body> </html>
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