Not sure if we need IE or other prefixes here. See http://www.quackit.com/css/css3/properties/css_appearance.cfm

> For maximum browser compatibility many web developers add browser-specific properties by using extensions such as `-webkit-` for Safari and Google Chrome, `-ms-` for Internet Explorer, `-moz-` for Firefox, `-o-` for Opera etc. As with any CSS property, if a browser doesn't support a proprietary extension, it will simply ignore it.