Removal of style sheet limits

In Windows Internet Explorer 9 and earlier, there is a limit of 31 style sheets per webpage. There is also a nesting limit of four levels deep for style sheets that are linked using @import rules.

In Internet Explorer 10 (as well as Windows apps using JavaScript), this limit has been removed. There is no limit to the number of style sheets you can reference per webpage in Internet Explorer 10 or Windows apps using JavaScript for Windows 8. You are also not limited in the number of times you can nest @import rules inside style sheets.


Internet Explorer 10 Guide for Developers