javascript and CSS animation conflict - translate doesn't works, opacity does -


i have piece of code tested here: http://jsfiddle.net/pttjx/ simple css animation , js display screen size. code line num. 7 stopt css animation: translate. removing line , works again. didn't find reason that. can confirm bug or faulty code. thanks

<script> function resize(){ var p,h,w,f_factor=1; w=window.innerwidth; h=window.innerheight;  p=math.floor(f_factor*(8+w/50));  if(p<4){p=4;}document.body.style.fontsize=p+"px"; document.getelementbyid("dimensions").innerhtml = w + "x" + h; }  resize(); </script>  <style> .slide_1 { z-index:50; top: 0px; left:0%; position: absolute; overflow: hidden;  font-size: 30px;  }  .slide_1 { -webkit-animation: slide 3s infinite; -webkit-animation-delay: 0s;  -webkit-animation-fill-mode:forwards;  -webkit-transform-origin: 0%  0%;  }  @-webkit-keyframes slide {      0%{-webkit-transform: translate(0%);}     50%{-webkit-transform: translate(250%) ;text-shadow: 0 0 10px rgba(0,0,0,1);}     100%{-webkit-transform: translate(0%);} }  </style> <html>  <span  class="slide_1"  id="dimensions">abc</span>  </html>

this because property null.

i surround document.body.style.fontsize=p+"px"; try/ catch like:

try{document.body.style.fontsize=p+"px";}catch(ex) {alert(ex.message);}

the exception "cannot read property 'style' of null. error means element doesn't exist..

i hope helps ;)


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