Wp zoom Manifesto theme: How to remove thick borders in Hompage.

Hi,
Yesterday, i played with the css, i was able to remove the borders from posts and caption, including smileys….(with help from Digital Raindrops). I continued to the homepage, but it looks as if the img{} where i can put the border: none; doesn’t exist, i even went as far a putting border: none; in every css code on my local host. But everything remains the same.

Pls, i really need your help…
thanks
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