用CSS3实现登录和注册两个表单切换动画效果

实现动画的css3代码
@-webkit-keyframes animar_fondo {
  from { -webkit-transform: scale(1) translate(0px);
-moz-transform: scale(1) translate(0px);
-ms-transform: scale(1) translate(0px);
-o-transform: scale(1) translate(0px);
transform: scale(1) translate(0px); }
  to { -webkit-transform: scale(1.5) translate(50px);
-moz-transform: scale(1.5) translate(50px);
-ms-transform: scale(1.5) translate(50px);
-o-transform: scale(1.5) translate(50px);
transform: scale(1.5) translate(50px); }
}
@-o-keyframes identifier {
  from { -webkit-transform: scale(1);
-moz-transform: scale(1);
-ms-transform: scale(1);
-o-transform: scale(1);
transform: scale(1); }
  to { -webkit-transform: scale(1.5);
-moz-transform: scale(1.5);
-ms-transform: scale(1.5);
-o-transform: scale(1.5);
transform: scale(1.5); }

}
@-moz-keyframes identifier {
  from { -webkit-transform: scale(1);
-moz-transform: scale(1);
-ms-transform: scale(1);
-o-transform: scale(1);
transform: scale(1); }
  to { -webkit-transform: scale(1.5);
-moz-transform: scale(1.5);
-ms-transform: scale(1.5);
-o-transform: scale(1.5);
transform: scale(1.5); }

}
@keyframes identifier {
  from { -webkit-transform: scale(1);
-moz-transform: scale(1);
-ms-transform: scale(1);
-o-transform: scale(1);
transform: scale(1); }
  to { -webkit-transform: scale(1.5);
-moz-transform: scale(1.5);
-ms-transform: scale(1.5);
-o-transform: scale(1.5);
transform: scale(1.5); }
}