Whitespace cleanup for readability.
unnesting IDs to improve performance.
Reordering nested properties for readability.
Make one property declaration per line for readability.
Remove `! important` declarations

`! important` is not valid css and was being ignored in the browser.
`!important` may have been the original intent, but we recommend
using other techniques before this.
Set line-heights to 1em when they match the font-size to reduce redundancy.
Nesting elements to increase readability.
Merge pull request #1140 from strand/feature_responsive_readability

Feature responsive readability