Update RAC CSS styles to v0.7.x

[HaSistrunk]

Is your feature request related to a problem? Please describe.

There are RAC Style Library styles updates in a new release that will impact DIMES, including small changes to how icons in buttons are handled and line-height/font-size for paragraphs and links.

Describe the solution you'd like

Review the changes and update local DIMES styles to incorporate the style library version changes.

Additional context

We don't anticipate a lot of fluctuation in styles that will impact DIMEs on an ongoing basis, but in the next few months as we implement styles in our other web sites, there will be new versions released to incorporate necessary updates.