Want to share a small tech-demo which simulates a moving flashlight (spotlight) over your web-site (without using Adobe Flash). The light is following mouse cursor. Uses jQuery. See the screenshot and the corresponding code:
<html> <head> <style> .fl { background-image: -moz-radial-gradient(center 45deg, circle closest-corner, rgba(255, 255, 255, 0) 0%, rgba(0, 0, 0, 255) 10%); background-image: -webkit-gradient(radial, center center, 0, center center, 350, from(rgba(255, 255, 255, 0)), to(rgba(0, 0, 0, 255))); width: 5000px; height: 5000px; position: absolute; } </style> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script> <script type='text/javascript'> $(document).ready(function(){ $(document).mousemove(function(e){ $("#fl").css({ top: (e.pageY - 2500) + "px", left: (e.pageX - 2500) + "px" }); }); }); </script> </head> <body style=" height: 100%; margin: 0; padding: 0; background: url(http://www.onestopwebmasters.com/wp-content/uploads/2009/12/new-vista-wallpaper.jpg); overflow-x: hidden; "> <div class="fl" id="fl"> </div> </body> </html>
Update: the challenge was though to make links and buttons clickable still even though they are covered with a full-screen div. Luckily Firefox supports https://developer.mozilla.org/en/CSS/pointer-events which is just one line in CSS that makes the div transparent for the clicks. Naturally IE doesn't support this feature so a small jQuery code is looking for any links at the current mouse pointer coordinates and propagates a click on a covering DIV to the underlying links.
Demo: http://wagner-verlag.de/genre/Kriminalroman. Enjoy.
1 comment:
Thanks for sharing, do you have any tips for getting this to work on my canvas ipad animation? The height/width of 5000px seems to cause problems, I'm not sure how to fix it.
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