我需要创建一个旋转动画。点击事件将元素旋转180°指向下方。另一个点击事件将同一元素旋转回0°指向上方。
我将
有什么想法我可能做错了吗?
我的Codepen链接: http://codepen.io/simspace-dev/pen/RrpGmP 我的代码:
我将
animation-fill-mode
设置为forwards
以保留最后的关键帧状态。但它似乎没有起作用。所有视觉元素都会重置为默认状态。有什么想法我可能做错了吗?
我的Codepen链接: http://codepen.io/simspace-dev/pen/RrpGmP 我的代码:
(function() {
$('#btnb').on('click', function(e) {
return $('.box').addClass('spin-counter-clockwise');
});
$('#btnf').on('click', function(e) {
return $('.box').addClass('spin-clockwise');
});
$('.box').on('webkitAnimationEnd', function(e) {
return $(e.target).removeClass('spin-counter-clockwise').removeClass('spin-clockwise');
});
}.call(this));
.box {
background: red;
position: relative;
width: 176px;
height: 176px;
margin: 40px auto;
text-align: center;
}
.box .top {
background: green;
position: absolute;
top: 0;
width: 100%;
height: 28px;
}
.box .bottom {
background: purple;
position: absolute;
bottom: 0;
width: 100%;
height: 28px;
}
.box .caret {
color: white;
font-size: 88px;
position: absolute;
top: 42px;
left: 50px;
}
.spin-clockwise {
-moz-animation: spin 2s;
-webkit-animation: spin 2s;
-moz-animation-fill-mode: forwards;
-webkit-animation-fill-mode: forwards;
}
.spin-counter-clockwise {
-moz-animation: spin 2s reverse;
-webkit-animation: spin 2s reverse;
-moz-animation-fill-mode: forwards;
-webkit-animation-fill-mode: forwards;
}
@keyframes spin {
from {
-webkit-transform: rotate(0deg);
transform: rotate(0deg);
}
to {
-webkit-transform: rotate(180deg);
transform: rotate(180deg);
}
}
body {
text-align: center;
margin: 0 auto;
}
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css" rel="stylesheet" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<h2>Keyframes are not supported in IE9 and earlier</h2>
<div class="box">
<div class="top">top</div>
<div class="caret"><i class="fa fa-caret-square-o-up"></i>
</div>
<div class="bottom">bottom</div>
</div>
<p>
<button id="btnf">SPIN CLOCKWISE</button>
</p>
<p>
<button id="btnb">SPIN COUTNER CLOCKWISE</button>
</p>