如何在悬停时使CSS动画反转？

I have an animation on my site which goes from width: 100px to 800px when hover on.

我的网站上有一个动画,当它悬停时,从宽度:100px到800px。

But when hover out, it just goes to the normal position with no animation.

但是当它悬停时,它只会进入正常位置而没有动画。

How could I get it so the animation would go back on hover-out the same way it came on hover?

我怎么能得到它所以动画会像悬停时那样重新悬停?

I only found solutions for transitions, but I need it for animation.

我只找到过渡的解决方案,但我需要它用于动画。

<div id="blackbox"/>
<div id="blacktxt">
Navigation
</div>

See Here

2 个解决方案

#1

Why not use transitions instead of animations? Working jsFiddle

为什么不使用转换而不是动画?工作jsFiddle

#blackbox {
    background: black;
    width: 100px; 
    height: 80px; 
    color: white; 
    text-align: center; 
    font-family: Times; 
    font-size: 20px;
    position: fixed;
    left: 0px;
    bottom: 100px;
    opacity: 0.5;
    margin-bottom: 10px;
    transition: all 2s; /* Add this transition */
}


#blackbox:hover { /* Apply the new design on hover */
    opacity: 0.8;
    width: 800px;
}

#blacktxt {
    margin-top: 10px;
    height: 60px;
    transition: opacity 0.5s, width 5s;
    position: absolute;
    font-family: cursive;
    cursor: default;
}

#blacktxt:hover {
    opacity: 0;
}

#2

I wrote the jQuery Reversible plugin for this. Its main advantage over CSS transitions is that it works on IE9 and older browsers.

我为此编写了jQuery Reversible插件。它比CSS过渡的主要优点是它适用于IE9和旧版浏览器。

#1