@-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;}