html - IE9 圆角和 CSS 背景渐变一起生活？

Question

我在 IE9 中遇到了一个奇怪的事情，试图让背景渐变显示。

基本上我将多个类应用于容器对象。

<div class="gradient corners"></div>

使用这个 CSS。

.gradient {
background-color: #96A7C5;
background-image: -webkit-gradient(
linear,
left bottom,
left top,
color-stop(0.19, #6C86AD),
color-stop(0.6, #96A7C5)
);
background-image: -moz-linear-gradient(
center bottom,
#75A33A 19%,
#8DC447 60%
);

.corners {
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
border-radius: 10px;
}

为了在 IE 中获得渐变，我将过滤垃圾应用到我的 .gradient 类。

filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#8DC447', endColorstr='#75A33A');

这样，渐变就可以了，但我的圆角消失了。

所以我尝试为过滤器声明添加一个条件。

<!--[if IE]>
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#8DC447', endColorstr='#75A33A');
<![endif]-->

这带回了我的角落，但渐变消失了。

score 25 · Accepted Answer

Gradient will go out for rounded corners in IE9, so the best solution for now to add one extra div:

 <div class="corners"><div class="gradient"></div></div>

and hide overflow for .corners

.corners {
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
border-radius: 10px;

overflow: hidden;
}

I recomend this Photoshop-like tool for creating cross-browser gradients: http://www.colorzilla.com/gradient-editor/

And this one to create border-radius: http://border-radius.com/

score 2 · Accepted Answer

你不需要这个if IE块。

只需将所有 3（如果您同时包含 IE，则为 4）规则放在样式声明中，浏览器只会选择他们理解的规则。

一个例子：

.gradient {
background-image: -moz-linear-gradient(top, #81a8cb, #4477a1); /* Firefox 3.6 */
background-image: -webkit-gradient(linear,left bottom,left top,color-stop(0, #4477a1),color-stop(1,#81a8cb)); /* Safari & Chrome */
filter:  progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#81a8cb', endColorstr='#4477a1'); /* IE6 & IE7 */
-ms-filter: "progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#81a8cb', endColorstr='#4477a1')"; /* IE8 */
}

It should also be noted that gradients in IE will only work if the element hasLayout (See: http://reference.sitepoint.com/css/haslayout)

score 2 · Accepted Answer

This is a pretty solid workaround for the IE9 gradients vs corners issue. It uses js to generate an SVG on the fly - and it's fast.

http://abouthalf.com/2011/10/04/updated-ie9-gradients-with-rounded-corners/

score 1 · Accepted Answer

rounded corners and filter don't go together. for IE i always include http://css3pie.com and use it to do border-radius and gradients in IE. a sample css looks like this:

.someElement {
    behavior: url(assets/js/PIE.htc);
    border-radius: 10px;
    background: #8cb2d1;
    background: url(data:image/svg+xml;base64,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);
    background: -moz-linear-gradient(top,  #8cb2d1 0%, #4080b3 42%);
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#8cb2d1), color-stop(42%,#4080b3));
    background: -webkit-linear-gradient(top,  #8cb2d1 0%,#4080b3 42%);
    background: -o-linear-gradient(top,  #8cb2d1 0%,#4080b3 42%);
    background: -ms-linear-gradient(top,  #8cb2d1 0%,#4080b3 42%);
    background: linear-gradient(top,  #8cb2d1 0%,#4080b3 42%);
    -pie-background: linear-gradient(top, #8cb2d1 0%,#4080b3 42%);
}

The steps:

include PIE.htc via behavior
add border radius as usual (border-radius: 10px;)
add the special -pie-background attribute: (-pie-background: linear-gradient(top, #8cb2d1 0%,#4080b3 42%);)

score 1 · Accepted Answer

Just use a wrapper div (rounded & overflow hidden) to clip the radius for IE9. Simple, works cross-browser. SVG or JS are unnecessary.

<div class="ie9roundedgradient"><div class="roundedgradient">text or whatever</div></div>

.ie9roundedgradient { 
display:inline-block; overflow:hidden; -webkit-border-radius: 8px; -moz-border-radius: 8px; border-radius: 8px; 
}
.roundedgradient { 
-webkit-border-radius: 8px; -moz-border-radius: 8px; border-radius: 8px; 
/* use colorzilla to generate your cross-browser gradients */ 
}

html - IE9 圆角和 CSS 背景渐变一起生活？

5 回答 5

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