Change Border Color Around Images

Hello--

I would like to change the border color around the images that I select to have a border- these will all be images within blog posts. You can view an example here:

http://www.elitemakeupdesigns.com/2013/08/makeup-hair-photo-shoot-camarillo-mariah-bevacqua/

See how the top two images have borders? I'd like it to be light grey to match the theme. Please advise.

 

Hello,

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

.content-wrap .blog img {
border: 1px solid red!important;
}

Inplace of "red" put your color code.