Hello
i have this class (.Intensy Post .blog-post > div)
i want to set different float (left) when the language is english and float(right) when the language is arabic
all this in k2 content

Hello,

Please do not double post.
I have already answered your other post.

If you are only looking for direction, you can download Takai which is free and check the template.css file and how the direction is being changed.

www.joomlaworks.net/joomla-templates/free-templates/takai