Font Size

[Setokaiba]

How can I change the font size that is a problem? See the images:

[Jake Bunce]

Font sizes are all in the CSS definitions:

Admin CP -> Styles & Templates -> Style Manager -> Main CSS (in the menu)

This color map will help you to identify specific classes:

http://www.vbulletin.com/docs/html/main/color_maps_intro

[Setokaiba]

The source which I mean, here was this stretch of the CSS?

}
vbcard {
font-size: 14pt;
}
/* ***** styling for 'big' usernames on postbit etc. ***** */
.bigusername { font-size: 14pt; }
/* ***** small padding on 'thead' elements ***** */
td.thead, div.thead { padding: 4px; }
/* ***** basic styles for multi-page nav elements */
.pagenav a { text-decoration: none; }
.pagenav td { padding: 2px 4px 2px 4px; }
/* ***** define margin and font-size for elements inside panels ***** */
.fieldset { margin-bottom: 6px; }
.fieldset, .fieldset td, .fieldset p, .fieldset li { font-size: 11px; }
/* ***** don't change the following ***** */
form { display: inline; }
label { cursor: default; }
.normal { font-weight: normal; }
.inlineimg { vertical-align: middle;}
.navbarnav {
vertical-align: top;
}
.navbar_bg {background: url("misc/layout/navbar_bg.gif");}
.header {
	background-image: url("gradients/header_bg.gif");
	background-repeat: repeat-x;
	background-position: top;
}
.navbarnav2 {}

[calorie]

Whoa, that is puny. None of the CSS you posted stands out as the problem. Please post the HTML from when you view the HTML source (of that section) to give us a better idea as to what CSS is affecting the size, or find in that HTML source the CSS definition or inline style attribute that might be the source of that small size.

[Setokaiba]

It lies in:
memberinfo_css

Thanks.