Internet Explorer 8中的CSS渐变

Question

The code is here: http://jsfiddle.net/xEULj/

#rt-header {
width: 600px;
z-index: 2;
position: relative;

background: -webkit-linear-gradient(left, red, red 40%, green 40%, green);
background: -moz-linear-gradient(left, red, red 40%, green 40%, green);
background: -o-linear-gradient(left, red, red 40%, green 40%, green);
background: -ms-linear-gradient(left, red, red 40%, green 40%, green);
background: linear-gradient(left, red, red 40%, green 40%, green);
}

Has there been a way to make this happen in IE yet? Some work-around that I have yet to find? I've actually just found out that this doesn't work in IE10, I thought it would, coming from here: http://ie.microsoft.com/testdrive/Graphics/CSSGradientBackgroundMaker/Default.html , but I guess not.

Any ideas, or do I just need to use an image?

Answer 1

There is IE10 support below with gradient going from green to red.

CHECK THIS DEMO

#rt-header
        {
    background: #ff3232; /* Old browsers */
    background: -moz-linear-gradient(left, #ff3232 1%, #ff2828 49%, #3fff30 49%, #3fff00 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, right top, color-stop(1%,#ff3232), color-stop(49%,#ff2828), color-stop(49%,#3fff30), color-stop(100%,#3fff00)); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(left, #ff3232 1%,#ff2828 49%,#3fff30 49%,#3fff00 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(left, #ff3232 1%,#ff2828 49%,#3fff30 49%,#3fff00 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(left, #ff3232 1%,#ff2828 49%,#3fff30 49%,#3fff00 100%); /* IE10+ */
    background: linear-gradient(to right, #ff3232 1%,#ff2828 49%,#3fff30 49%,#3fff00 100%); /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ff3232', endColorstr='#3fff00',GradientType=1 ); /* IE6-9 */
        }

Answer 2

I believe you might need to use the to keyword.

try background: linear-gradient(to right, red, red 40%, green 40%, green);

Answer 3

You can use pseudo-elements to fill the given part of the element with the solid color:

#rt-header {
    width: 600px;
    z-index: 2;
    position: relative;
    background: green;
}

#rt-header:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 40%;
    height: 100%;
    background: red;
    z-index: -1;
}

EDITED FIDDLE

Should work in IE8 (tested with netrenderer.com).