How to increase the font size of the regular text

Hello,

I’m using the Greyzed theme and trying to figure out how to increase the size of the base text.

The website is

I found these FONT-SIZE options in this file and see where I can adjust the size of each of the headers H1-H6, but I’d like to make the regular ‘paragraph’ text a little bigger.

Thanks!!

Greyzed: Stylesheet (style.css)

/*——————————-
START Typography & Colors
——————————-*/

#header .description {
font-size: 1.4em;
padding: 0 0 0 39px;
font-weight: bold;
}

#header .rss {
font-size: 1.2em;
padding: 0 0 0 768px;
font-weight: bold;
}

#header .rss a{
color: #000; }

#header .rss a:hover {
color: #000;
text-decoration: none;
border-bottom: 2px dashed #cc0000; }

h1 {
font-size: 4.8em;
font-family: impact;
text-transform: uppercase;
padding: 0 0 0 39px;
}

h1, h1 a, h1 a:hover, h1 a:visited, #header .description {
text-decoration: none;
color: #000;
}

h2 {
font-size: 2.8em;
font-family: impact;
font-weight: normal;
padding-bottom: 9px;
}

h2, h2 a, h2 a:visited, h3, h3 a, h3 a:visited {
font-family: impact, Verdana, Arial, Sans-Serif;
color: #cc0000;
text-decoration: none;
}

#sidebar h2, #wp-calendar caption, cite {
text-decoration: none;
}

h3 {
font-size: 2.5em;
}

H4 {
font-size: 2.4em;
font-family: impact;
color: #000;
padding: 0px;
}

H4.footerwidget {
padding-top: 20px;
}

H5 {
font-size: 2em;
font-family: impact;
color: #000;
padding: 12px 0 12px 0;
}

H6 {
font-size: 1.6em;
font-family: impact;
color: #000;
padding: 0px 0 16px 0;