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Extensions, resources & tutorials for Fireworks, Dreamweaver & HTML5 / CSS3 by UI developer, Matt Stow.

Testing IE10's @-ms-viewport rule

Posted: January 6 2013

Using Microsoft's recommended viewport declaration

@media (max-width: 400px) {
	@-ms-viewport {
		width: 320px;

This works for IE 10 in “snap mode” on Windows 8 and on Windows Phone 8.

Unfortunately, it doesn't allow desktop IE 10 to act responsively when the window is below 401px wide.

Read the accompanying article, Responsive Design in IE10 on Windows Phone 8.