Edit content tabs overlap when adding taxonomy category

When using the Internet Explorer 11 browser, if you try to assign a taxonomy category to content, all editor tabs appear, and some of them obscure other buttons, such as the Save button.

Internet Explorer 11's Compatibility View, which is turned on by default, is not supported. To avoid cosmetic and some functionality problems, disable Compatibility View.

1. Press Alt/X to display the Internet Explorer Tools menu.
2. Choose Compatibility View Settings.
3. Uncheck Display intranet sites in Compatibility View.