Formatting text in the sidebar

Hi Folks

I am trying to change the formatting of the header text “Tags” in my sidebar tag cloud. My site is here: https://www.scaryinternet.com

I would like to remove the bullet point, make “Tags” larger, and a different color as well as center it over the cloud. I have searched around and found some color codes and font changes for style.css but so far my efforts are futile. I’m relatively new to digging in the themes so I’m sure this is a simple fix, but if someone out there could help out I would appreciate it.