The content of RadEditor does not get styled in div mode in IE11. The styling tag is added before the selected content, instead of around it (e.g. strong tag).

https://www.screencast.com/t/HoqeLyeZX

Steps to reproduce:
1. Open in IE11:  https://demos.telerik.com/aspnet-ajax/editor/examples/contentareamodediv/defaultcs.aspx
2. Clear whole content and write some new symbols
3. Try to style the new content (e.g. make it bold)