As an administrator user, I have no difficulties using HTML in my entries. However, an author user on my blog recently reported a problem. He attempted to center text using the alignment button in visual editor, or even typing in the code manually. This produced code like this:
<p style="text-align: center;">foo</p>
Unfortunately, any time he saves, the system reduces the code to this:
<p style="center;">foo</p>
Which doesn't work. When I try it as an administrator user, it works fine. When I log in under his username, I have the same problem.
I am using WordPress version 2.5.1.