How to make one side of the post message a different color.

Hello there. Any idea how I could change the color before the white line on the post messages?

Example change the color before the white line:  http://prntscr.com/5t9idy


Please try help.

Hey,

It looks like phpbb3, and I know the line isn't that big. Anyhow, this will change the color of the profiles, and add a border too.

Code:

.postprofile {
  background:#444;
  border:1px solid #666;
  border-radius:3px;
  padding:3px;
}

If you still insist on coloring the whole left side, I'd recommend using a background image on posts. Like this :

Code:

.post { background:url(imagetocolor.gif) repeat-y left top #3A3A3A }

Replace imagetocolor.gif by the URL of your image. I'd suggest one that's about 300px in width.