Body Font Size

Hi I would like my body font 1 pt or 2 larger. How would I do that?

http://www.avisualadvantage.net/ExtraEfforLandscaping/

Thank you

 

I also need to make the quote font on the bottom larger...Thank you

 

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

p {
font-size: 18px;
}
blockquote {
font-size: 18px;
}

Adjust its value as per your requirements.