javascript - Flip Card with Greensock Tween and Safari -


i've found pen:

http://codepen.io/rhernando/pen/vjgxh

html

<div id="mainwrap"> <div class="cardcont">   <div class="cardback"></div>   <div class="cardfront"></div> </div> <div class="cardcont">   <div class="cardback"></div>   <div class="cardfront"></div> </div> <div class="cardcont">   <div class="cardback"></div>   <div class="cardfront"></div> </div> </div> <div style="clear:both;"></div>  <div id="mainwrap" style="margin-top:10px;"> <div class="cardcont">   <div class="cardback playcardback"></div>   <div class="cardfront playcardfront"></div> </div> <div class="cardcont">   <div class="cardback playcardback"></div>   <div class="cardfront playcardfront"></div> </div> <div class="cardcont">   <div class="cardback playcardback"></div>   <div class="cardfront playcardfront"></div> </div> </div>

css

body {   background:#444; } .cardcont {   width:250px;   height:400px;   float:left;   margin-right:10px;   position:relative;   /*border:solid 2px #fff;*/ } .cardfront, .cardback {   position:absolute;   width:250px;   height:400px;   background:url('http://s.cdpn.io/33073/lorempixel.jpg');   backface-visibility: hidden;   -webkit-backface-visibility: hidden;   -moz-backface-visibility: hidden;   -ms-backface-visibility: hidden; } .cardback {   background:url('http://s.cdpn.io/33073/lorempixe1l.jpg'); }  .playcardfront {   background:url("http://unlimitedpotentialnow.com/wp-content/uploads/2012/01/bouquet-cs.jpg"); } .playcardback {  background:url("http://i203.photobucket.com/albums/aa158/comic1111/ace.png"); }

js

cssplugin.defaulttransformperspective = 1000;  //we set backface  tweenmax.set($(".cardback"), {rotationy:-180});  $.each($(".cardcont"), function(i,element) {      var frontcard = $(this).children(".cardfront"),       backcard = $(this).children(".cardback"),       tl = new timelinemax({paused:true});      tl         .to(frontcard, 1, {rotationy:180})         .to(backcard, 1, {rotationy:0},0)         .to(element, .5, {z:50},0)         .to(element, .5, {z:0},.5);      element.animation = tl;  });  $(".cardcont").hover(elover, elout);  function elover() {     this.animation.play(); }  function elout() {     this.animation.reverse(); }

that displays nice effect greensock. problem is not cross-browser beacuse doesn't work on safari.

could me understand why?

thanks


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