Fix Bottom of Page Color Issues

[ryangchung]

While #213 is outdated, this is still an issue for certain pages. The color difference is very slight, but still present.

Please fix these bottom of page color issues.

https://ccss.carleton.ca/about/

https://ccss.carleton.ca/about/governance/

https://ccss.carleton.ca/events/ (very slight, but can be viewed in HTML)