what's the identifier for the text that we type in the post box?

It should be .formpost when you're typing a new post, and .editpost if you're editing an existing post.

So if I put font-family: times new roman; in my custom css box, all the font will show as Times New Roman?

I haven't tested this, but

body {
  font-family: "Times New Roman";
}

should do the trick.

It should be .formpost when you're typing a new post, and .editpost if you're editing an existing post.

I see that in the default CSS, but it doesn't have a "font size = whatever" line where I can change the font size (I've been bumping everything up by ~10%, and it works great for my horrible eyesight). Can I just put that in a line that says "Font size = 90%", or will that make the Internet explode?

For space at the bottom of the post, you need to change the padding-bottom parameter of the .post class. It's currently set to 1.5em, so

.post {
  padding-bottom: 1em;
}

will make it a little less blanky.

Teppy, this should do the trick:

.formpost, .editpost {
  font-size: 90%;
}

What I mean is this part:

.formpost, .editpost {
width: 505px;
height: 175px;
}

Is there a place in there I can indicate that the font needs to be bigger? Because what I'm typing right now looks like it's about 6 pt., and it's killing my eyes.

Funny -- I really think everything looks pretty much exactly the same as before. When I first came on this morning, I was expecting the posts in here to end up with saying we were switching back to the old style.

I haven't tested this, but

body { font-family: "Times New Roman"; }

should do the trick.

Worked terrific, thanks. Serif fonts look much nicer to my eyes.

Jon, I tried what you indicated, and I'm still getting teeny-tiny font as I type.

Oh, sorry! If you want it bigger, try:

.formpost, .editpost {
  font-size: 120%;
}

Okay, apparently I just needed to make it 100% instead of 90%. It's all good now.