bootstrap.min

Why is all css in this file in one row ? Is there some editor that can broke code in several rows. In this state is hard to edit.
thanx
buy the way Im trying to change hover color of Add to cart button on product page, Am I looking in good place ?

.min.css (and .min.js) files are minified versions of the CSS file, so that they load faster in customer's browser. If you want to edit it, look for the non-minified version in the same folder. It should be there in a standard installation. If it's not, you'll need to download the original bootstrap.css file, and edit it from there.