css3动画特效：上下晃动的div

css3动画特效：上下晃动的div

<div id="square" class="container animated">上下晃动</div>

/**
* transform-origin 设置旋转元素的基点位置
* animation-name 设置动画名称
* animation-duration 设置动画时间
* animation-fill-mode 设置播放后的状态
* animation-iteration-count 设置循环播放的次数
* transition-timing-function: cubic-bezier 贝塞尔曲线效果，它有四个值，指在X轴与Y轴的两个曲线的点，第一个点：X1 Y1;第二个点：X2 Y2
* transform: translate3d 设置动画Z轴位移几个元素，表示只在Z轴上移动
*
* 需要注意：transform: translate3d 不等于 transform: translateZ
*/

.animated {
animation-duration: 1s; /*动画时间*/
animation-fill-mode: both; /*播放后的状态*/
}

.animated {
animation-iteration-count: infinite; /*动作循环的次数：infinite 无限循环*/
}

.animated {
animation-duration: 2s; /*动画时间*/
}

.container {
background: #2D97DB;
width: 90%;
height: 90%;
padding: 100px;
margin: 20px auto;
font-family: "微软雅黑";
font-size: 40px;
color: white;
text-align: center;
line-height: 90%;
}

.container:hover{
animation-name:container; /*动画的名称*/
transform-origin: center bottom; /*设置动画旋转元素的基点为：居中靠下*/
cursor: pointer;
}

@keyframes container{
0%,
100%,
20%,
50%,
80% {
transition-timing-function: cubic-bezier(0.215,.61,.355,1); /*贝塞尔曲线 ： X1 Y1 X2 Y2*/
transform: translate3d(0,0,0); /*设置只在Z轴上移动*/
}
40%,
43%{
transition-timing-function: cubic-bezier(0.755,0.50,0.855,0.060);
transform: translate3d(0,-30px,0);
}
70%{
transition-timing-function: cubic-bezier(0.755,0.050,0.855,0.060);
transform: translate3d(0,-15px,0);
}
90%{
transform: translate3d(0,-4px,0);
}
}