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Are both -ms-filter and filter used for gradients in IE?

I am using the following code, but now I don't know if I need to use both of these:

filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#46494F', endColorstr='#141A1E',GradientType=0);

-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr='#46494F', endColorstr='#141A1E',GradientType=0)";}

What's making me more confused is that VS2010 reports the following message "Validation CSS 2.1 - filter is not a known property name."

Has anyone experienced similar issues using these? How about with IE9 and above? Are these still used or is that browser using new CSS standards?

Solution

  • filter and -ms-filter are proprietary CSS properties invented by Microsoft for use with IE only, so the validation messages aren't an issue.

    filter is used for IE older than 8, while IE8+ adopts the prefixed version, -ms-filter.