At first I thought put a full post above column on my homepage MCCQ model, but I did not realize that if my post had more photos and a long text, it would not look nice on the homepage.
So I opted for a post above the columns, which is an excerpt of the full-post, and the image is an featured image , I want this and only this image is as large as a picture whole article (600 x 400 px)
how can I change the size of that thumbnail in the css code or changing the "src" in the html?
I tried to change the size of that thumbnail, in css, but the quality was very bad, because it was just a thumbnail resized ...