firefox中背景图像的过渡? [英] transition for background-image in firefox?

问题描述

我正在为此寻找替代方案:

I am trying to find an alternative for this:

"transition:background-image 1s 随便"

在 firefox 中，因为它仅适用于 webkit 浏览器.

in firefox since it only works on webkit browsers.

我已经尝试了不透明度替代方案，但那不是我的选择，因为我在背景容器上有内容，如果使用不透明度，这些内容将与背景一起消失.

I already tried the opacity alternative but thats not an option for me since i have content on the background container which will disappear along with the background if using opacity.

谢谢.

推荐答案

你可以使用 2 个伪元素来做到这一点

You can do that using 2 pseudo elements

CSS

.test
{
    width: 400px;
    height: 150px;
    position: relative;
    border: 1px solid green;
}

.test:before, .test:after {
    content: "";
    position: absolute;
    top: 0px;
    right: 0px;
    bottom: 0px;
    left: 0px;
    opacity: 1;
}
.test:before {
    background-color: red;
    z-index: 1;
    transition: opacity 1s;
}

.test:after {
    background-color: green;
}

.test:hover:before {
    opacity: 0;
}

摆弄真实图像

(悬停过渡)

fiddle with real images

(hover to transition)

为了能够看到 div 内容，伪元素需要在负 z-index 中:

To be able to see the div content, the pseudo elements need to be in negative z-index:

看起来 IE 不会触发此悬停

looks like IE won't trigger this hover

.test:hover:before {
    opacity: 0;
}

但是会触发这个

.test:hover {
}
.test:hover:before {
    opacity: 0;
}

(看起来很傻)

IE10 的小提琴

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