I override fonts and such so the forum looks like just about any other site to me

.
Taking a quick look at the code, the forum is using a style named "subsilver2" which has most settings here:
styles/subsilver2/theme/stylesheet.cssTinySmallNormal
LargeHugeEDIT:
Alright the above post looks like this in the HTML code the forum generates:
Code:
<div class="postbody">I override fonts and such so the forum looks like just about any other site to me <img src="./images/smilies/icon_redface.gif" alt=":oops:" title="Embarassed" /> .<br /><br />Taking a quick look at the code, the forum is using a style named "subsilver2" which has most settings here:<br /><!-- l --><a class="postlink-local" href="http://twistypuzzles.com/forum/styles/subsilver2/theme/stylesheet.css">styles/subsilver2/theme/stylesheet.css</a><!-- l --><br /><br /><span style="font-size: 50%; line-height: normal">Tiny</span><span style="font-size: 85%; line-height: normal">Small</span>Normal<span style="font-size: 150%; line-height: normal">Large</span><span style="font-size: 200%; line-height: normal">Huge</span></div>
Also, all styles not defined by the above sheet are define in:
http://twistypuzzles.com/common/css/site.cssThe postbody class div has the following styles on it:
Code:
element {
}
.postbody {
font-size: 1em;
}
* {
margin: 0px;
padding: 0px;
}
.ModuleBoxGreyContent {
text-align: left;
}
.OuterLayoutCenter {
font-family: Verdana,Arial,Helvetica,sans-serif;
}
body {
font-family: Verdana,Arial,Helvetica,sans-serif;
color: rgb(102, 102, 102);
font-size: 0.75em;
}
BODY {
font-size: 0.75em;
font-family: Verdana,Arial,Helvetica,sans-serif;
color: rgb(102, 102, 102);
}
html {
font-size: 100%;
}
So to answer your question, the fonts that are used as part of posts are these fonts, in decreasing order of precedence: Verdana,Arial,Helvetica,sans-serif
The size is set to 1em
An "em" is relative to the default font size. See here:
http://kyleschaeffer.com/best-practices ... -vs-pt-vs/I don't see a default size set though so it's using whatever your browser thinks is the default font size. Probably 10 or 12 pt.