Adam Khoury

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Transform Rotate Image Spin Smooth Animation Tutorial

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Adam Khoury
Learn to program any CSS property animations you want using JavaScript and the CSS3 transform property, and just a few lines of code. JavaScript offers your animations more flexibility regarding user interactivity with your animations. CSS alone cannot offer you all of the DOM event handlers that are useful for programming advanced interactivity with the animated elements. <!DOCTYPE html> <html> <head> <script> var looper; var degrees = 0; function rotateAnimation(el,speed){ var elem = document.getElementById(el); if(navigator.userAgent.match("Chrome")){ elem.style.WebkitTransform = "rotate("+degrees+"deg)"; } else if(navigator.userAgent.match("Firefox")){ elem.style.MozTransform = "rotate("+degrees+"deg)"; } else if(navigator.userAgent.match("MSIE")){ elem.style.msTransform = "rotate("+degrees+"deg)"; } else if(navigator.userAgent.match("Opera")){ elem.style.OTransform = "rotate("+degrees+"deg)"; } else { elem.style.transform = "rotate("+degrees+"deg)"; } looper = setTimeout('rotateAnimation(\''+el+'\','+speed+')',speed); degrees++; if(degrees > 359){ degrees = 1; } document.getElementById("status").innerHTML = "rotate("+degrees+"deg)"; } </script> </head> <body> <img id="img1" src="cog1.png" alt="cog1"> <script>rotateAnimation("img1",30);</script> <h2 style="width:200px;" id="status"></h2> </body> </html>