HTML is what every single page on the World Wide Web is composed of, this one included.
What It Is
HTML is a flexible scripting language that includes text-formatting, graphics, colors, tables, links, and a myriad of other components. A browser like Netscape Navigator or MS Internet Explorer is a program that interprets HTML and displays it accordingly. Both browsers have slightly different methods of accomplishing this, so the page you are looking at now may not be exactly identical to what it would look like in another browser.
To see exactly what HTML looks like, there is usually a menu option in your browser to display it. With Netscape, it's View>Document Source. With MSIE, it's View>Source. Go ahead, try it out.
Every HTML page is composed of a few simple elements combined with all your page content, defined by brackets called 'tags':
<HTML> An HTML tag to tell the browser what it's looking at.
<HEAD> A Header tag for extra information about the document
<TITLE>Title Information</TITLE>
</HEAD> Closing Head Tag
<BODY> A Body tag to show where the page information begins
All of the page data is placed here. Graphics, text, etc...
</BODY> Closing Tags
</HTML>
With each of these tags, you can define page 'elements' like colors, text-formatting, image alignment, etc.
FONTs
For instance, the <FONT> tag can used used define text size, color, type (like Arial or Times New Roman), and alignment.
The tag <FONT SIZE=+2 COLOR=RED FACE=VERDANA>Modified Text</FONT> looks like this:
Modified Text
Graphics
Of course, graphics are what make the WWW interesting. (Who would want to read endless pages of text?) HTML fully supports 'graphical-integration' like alignment, text flow around graphics, and borders, among others.
<IMG SRC="imagen.ame" ALIGN=right, left, center>
