Change font in color for links in blog

In my blog posts the font of a link looks exactly like everything else…so unless a person happens to scroll across it….so that it becomes underlined, they cannot tell there are hyperlinks in the paragraphs. I want my links to be OBVIOUS….they are there to lead people to make a purchase.

I want to be able to change the color of the links.
I also want to be able to increase the size of the font in the paragraphs by one size. (I had attempted to do this by adding to the meta file…it didn’t work….nothing changed.)

Thanks so much for your help. 😉