css3图片飞走动画特效

.kidfly_animation{
position:relative;
animation:myfirst 5s;
-moz-animation:myfirst 5s; /* Firefox */
-webkit-animation:myfirst 5s; /* Safari and Chrome */
-o-animation:myfirst 5s; /* Opera */
}
@keyframes myfirst
{
50%  {left:3rem; bottom:1rem;}   /* 定位飞走的位置 */
100% {left:-1rem; bottom:3rem;}  /* 定位飞走的位置 */
}

@-moz-keyframes myfirst Firefox
{
50%  {left:3rem; bottom:1rem;}
100% {left:-1rem; bottom:3rem;}
}

@-webkit-keyframes myfirst Safari and Chrome
{
50%  {left:3rem; bottom:1rem;}
100% {left:-1rem; bottom:3rem;}
}

@-o-keyframes myfirst Opera
{
50%  {left:3rem; bottom:1rem;}
100% {left:-1rem; bottom:3rem;}
}