@keyframes myfirst

{

0%   {left:0px; top:0px;}

25%  {left:0; top:35px;}

50%  {left:0px; top:70px;}

75%  {left:0px; top:35px;}

100% {left:0px; top:0px;}

}

#cssAnimation

{

position:relative;

animation:myfirst 200ms linear 0s 1 alternate;

/* Firefox: */

-moz-animation:myfirst 200ms linear 0s 1 alternate;

/* Safari and Chrome: */

-webkit-animation:myfirst 200ms linear 0s 1 alternate;

/* Opera: */

-o-animation:myfirst 200ms linear 0s 1 alternate;

}

<view id=’{{cssAnimation}}’ class=‘donghuaBox’>

<label class=‘datiStyle’>{{aNum}}label>

<label class=‘datiStyle’>+label>

<label class=‘datiStyle’>{{bNum}}label>

<label class=‘datiStyle’>=label>

<input class=‘daanStyle’ value=’{{result}}’ confirm-hold=‘true’ focus=’{{focus}}’ type=‘digit’>input>

view>

点击下一题，css往下移动控件并返回原位，光标有时候会歪掉，频率有点高  iphone6 电脑端调试正常。用小程序自己的动画ios一点都不流畅。