css3图片抖动效果

@-moz-keyframes tada{
 0%{-moz-transform:scale(1);}
 10%,20%{-moz-transform:scale(0.9) rotate(-3deg);}
 30%,50%,70%,90%{-moz-transform:scale(1.2) rotate(3deg);}
 40%,60%,80%{-moz-transform:scale(1.2) rotate(-3deg);}
 100%{-moz-transform:scale(1) rotate(0);}
 }

 @-webkit-keyframes tada{
 0%{-webkit-transform:scale(1);}
 10%,20%{-webkit-transform:scale(0.9) rotate(-3deg);}
 30%,50%,70%,90%{-webkit-transform:scale(1.2) rotate(3deg);}
 40%,60%,80%{-webkit-transform:scale(1.2) rotate(-3deg);}
 100%{-webkit-transform:scale(1) rotate(0);}}

.doudun:hover{
 -webkit-animation: tada 1s .2s ease both;
 -moz-animation: tada 1s .2s ease both;
}