Created attachment 126471 [details] simplest docx with centered line Open simplest docx (attached) with one centered line in Writer - everything is ok. Save it as HTML and open in browser - line will not be centered. It happens because writer saved in head -> style tag default styles for p (looks like generated from default paragraph style defined in original docx file. In styles there are text-align: center is defined for p element. Later in body <p align="center" is used for centering paragraphs, but style definition overrides this and paragraph stays centered left. To fix it for centering elements instead of align="center" style="text-align: center" should be used.
*** This bug has been marked as a duplicate of bug 72308 ***