Save (style.css) in Wordpad

Plenty, Just make sure the doc is saved in standard format, meaning the lines are all there and not squished together. [Link removed – this is not an advertising forum.]

I have saved a copy of my edited style.css code with wordpad.. is this sufficient for a ‘back up’

No! Do not use WordPad for editing files or creating backups for any .css or .php file. You must use a plain text editor such as NotePad.

Hi,
Grab a copy of notepad++, it is like WordPress free to download and use, and it adds color to the code lines and you can see more easy if you make a mistake.

Suggestion
Changing values in the style.css can be hard to track, the method I prefer is to leave the themes styles without change, then at the bottom of the style.css add a new section for my changes.

The styles are read top to bottom and the new entries replace the earlier entries as they are read.

Example
Twenty ten theme and I want to hide the blog title and description, I need to add display: none; also I want to change the way the content images are styles, instead of finding the blocks and editing, at the end of the file I add.

/* Start Custom Style Changes */
/* hide site titles */
#site-title {
	display:none;
}

/* hide site description */
#site-description {
  display:none;
}

/* add a margin to the images */
#content img {
	margin: 10px 10px 0 0;
}
/* End Custom Style Changes */

The first two are extra styles, and the third will replace the values earlier in the file.

All I now have to do is save a copy of these changes and not the whole style.css

HTH

David