Define img dimensions to act responsively.
Reduce the scope of the selector to form elements and .button class to stop IE doing undesirable things.
Set LessCSS variables for for heading and body font weights.
Expressly set the site map padded indents since we shouldn't rely on default list styles.
Don't style the product form using the siteuser form styles.
Add clear fix to common grouping classes instead of specific id containers.
Avoid inheriting undesirable bottom margin.
Expressly remove margin and padding from adminmenu elements.
Float the mini buttons left when they are the first child element.
More specifically target elements within article containers to avoid unnecessarily disrupting layout elements.
Update the compiled CSS.