Thanks a lot for this great support and your helpful advice.
I have still several questions about customing the theme and I didn't find an answer by reading the other posts.
1) Font title Homepage: the title font is helvetica and I would like to have inherit, like in the demo theme. How can I do? I tried to edit the base.css file but it didn't change anything.
2) Footer - Size title : I would like to increase the size of the titles of the 4 columns in my footer. Is it possible?
3) Portfolio title : in the demo theme, we can see on the homepage the title "Recent work" above the portfolio. It seems to be in the shortcode [hr] but I didn't find how/where to modify it.
4) Last but not least :-) Breadcrumb: We can see a navigation area "You are here" when we visit the website. Is it possible to modifu the text? Where?
Lots of questions, I hope you'll be able to help me :-)