Take the following code and paste it into the editor in HTML mode... Copy Code <html> <head> <title></title> <style type="text/css"> OL LI {LIST-STYLE-TYPE: upper-roman;} OL LI OL LI {LIST-STYLE-TYPE: upper-alpha;} OL LI OL LI OL LI {LIST-STYLE-TYPE: decimal;} </style> </head> <body> <ol> <li>Test... <ol> <li>add sub bullet after this item... </li> <li>it most likely got formatted with an "A" and not a "1"<br /> <ol> <li>It should have been a 1 like this line</li> </ol> </li> </ol> </li> </ol> </body> </html> Flip back to design view and it looks great. Then in design view add a sub bullet to bullet A. It will be formatted with an "A" instead of a "1" that the css style defines. But, if you switch back to HTML view and then back to Design view the formatting is correct. Am I doing something wrong or is this a known issue? Telerik Comment: The Indent button (which fires a browser command) which is used to insert a sub bullet produced the following non XHTML compliant content: <OL> <LI>Test... <OL> <LI>add sub bullet after this item... </LI> <OL> <LI>new sub bullet</LI></OL> <LI>it most likely got formatted with an "A" and not a "1"<BR> <OL> <LI>It should have been a 1 like this line </LI></OL></LI></OL></LI></OL> When you switch to HTML mode, the ConvertToXhtml filter of RadEditor corrects the content and it becomes: <ol> <li>Test... <ol> <li>add sub bullet after this item... <ol> <li>new sub bullet</li> </ol> </li> <li>it most likely got formatted with an "A" and not a "1"<br /> <ol> <li>It should have been a 1 like this line </li> </ol> </li> </ol> </li> </ol> For this reason there is a difference how the bullets are rendered.