What is the best way to edit those 1 pixel background images?

I got my colleague's web page together with and the css files and many images. I need to apply part of it to my jsp page. I have to admit that I didn't have any experience in handling css. Currently I am using GIMP2 to edit those 1-pixel-width background images. It's really the pain in the neck. I have to guess the proper image size, crop it a bit, then view it in the jsp... Do you have a bett开发者_C百科er way to edit those 1-pixel-width images? Thanks in advance.

You might want to look into using Firebug add on for Firefox. There you can tweak the height of the graphics while looking at the page (yes, you need some knowledge about the DOM, CSS and Firebug to fully get this, but it's worth learning). Once you're happy with it, you open up your image editor and crop the image to that height.