I am using ckeditor 3.6.3  and opencart 1.5.3.1
The problem is that Paragraphs, horizontal lines and line spaces are showing differently in the admin panel and in store front. If in admin panel using ckeditor i enter horizontal line after a text, then in store front that horizontal line is two-three spaces below.
That means in order to get correct layout of text, images and horizontal lines at store front; i have to screw everything up in the admin panel.

ckeditor is working perfectly under default theme and all other themes, i.e. what i see at admin panel, i see the same at store front.

please help me to solve this issue.