I am using
<meta http-equiv="x-ua-compatible" content="IE=edge" />
and
header {
-webkit-box-shadow: inset 0px -18px 99px -53px rgba(0, 0, 0, 0.75);
-moz-box-shadow: inset 0px -18px 99px -53px rgba(0, 0, 0, 0.75);
box-shadow: inset 0px -18px 99px -53px rgba(0, 0, 0, 0.75);
}
Click here to see the staging site
This is not displaying in every version of Internet Explorer including IE 11 Metro. I'm testing through browserstack.com and do not have access to an actual copy of IE. Thanks!
Update: The original question was addressing the fact that my box-shadow css was not rendering in any version of IE.
This question gave me the clue that
<!doctype html>
needs to be on the very first line of the page. The problem is that I'm using Perch CMS which requires a line of php on the very first line of the page. See documentation. The question now becomes: Is it possible to render a box shadow in internet explorer while using Perch CMS?