jquery/web-base-template — comment on commit 4dc13a551a32a08ef2ea38246972df988bdeb2c5
File:  line 0
By rdworth:

There is no need for a file called blog.css. Each site/theme already has its own css file called style.css. If styles are needed in multiple sites the style needs to go in the main style.css (sometimes with a selectors specific enough to not affect all sites, or all parts of a site/page). Each page gets both the main /base/css/style.css and the specific theme's style.css loaded and those should be the only two stylesheets in the header.