问题
I have the next site:
id.factor.ua
If you open it in IE-11, you cannot see sub-menu in header.
Please, help me understand how to fix it!
回答1:
Yes, I confirm that there is a issue in IE 11, you can solve it however by specifying the !important element clauses in your CSS rule ul.art-hmenu ul::before {} and ul.art-hmenu::after, ul.art-hmenu ul::after{} (around line 1059).
The problem is that this rule is overwritten and interpreted wrong way by IE.
However, I see that you generated your theme with older version of Artisteer software. Always check for updates for this software, because this may solve such issues in future.
来源：https://stackoverflow.com/questions/23213766/menu-in-wp-doesnt-show-in-ie-11