Guys Guys Guys
Slow down.
First ya gotta write plain jane HTML, learning to dot your I's and cross your t's. Forget CSS for now, and definitely forget browser detection scripts, etc.
<html>
<head>
<title>
Hello world example
</title>
</head>
<body>
<!-- This is a comment - it doesn't show up but is useful
for documenting your code -->
<h1>I'm a main heading</h1>
<p>This is a paragraph</p>
<p>And this is another</p>
<h4>I'm a small heading</h4>
<br />
This is a list of colors:
<ul>
<li>red</li>
<li>orange</li>
<li>yellow</li>
<li>green</li>
</ul>
Here is a table:
<table>
<tr>
<td>Row 1 Col 1</td>
<td>Row 1 Col 2</td>
</tr>
<tr>
<td>Row 2 Col 1</td>
<td>Row 2 Col 2</td>
</tr>
</table>
And before we forget, here is an anchor (or link):
<a href="http://developers.evrsoft.com/forum/newreply.php?
s=&action=newreply&threadid=959">Reply to this thread</a>
</body>
</html>The above is a webpage using most of the common HTML tags. You need to be comfortable with knowing what these tags are, and how to use them properly. With one exception, all the above tags are paired (which one isn't, and do you know why?). You turn them on, then you turn them off. Like a stove element - if you don't turn them off, you can get burned, or at least scorch your page.:p
STAY AWAY from <font> and other tags that change the appearance of your text. They are part of "old-school" HTML. As several people have mentioned CSS (Cascading style sheets) are the modern way to go and are a lot easier to use in the long run. Have you ever used styles in a word processor? (If you don't you should!) If you use styles to format text in a word processor, editing the style can change the text everywhere in the document. That's how CSS works, too. But for it to work - you have to have an absolutely clean document - no codes for fonts, colors, positioning, etc.
Basic HTML has a fairly good variety of appearances - but they are based on what the semantic structure of the document is: You know - title, subtitle, table of contents (a list, right?) another title, paragraphs, subsection etc. HTML make these different elements look different by default. Learn how the different parts look. With CSS we can go on to change the look of any of these elements to suit our own style. BUT THAT COMES LATER.
Baby steps - too many folks crash and burn trying to do too much all at once.