Some Terms: element, tag, and attribute
XHTML means you will be writing more precise markup code. And, to explain how XTML works we need more precise terms.
Here's a quick summary of what's what in web page markup.
An element is the start and stop tag and all the content between these two tags.
In the illustration there are three elements: p strong and hr
A tag is the start and stop marker for each element. Each tag is designated by the less than "<" and the greater than ">" signs. In the illustration there are five tags: <p> <strong> </strong> <hr /> and </p>.
An attribute is a descriptor that can be added onto a tag. You can think of attributes as adjectives. They help the browser describe the element in a little more detail.
There are two attributes in this example. id="intro" and class="narrow".
Every attribute consists of an identifier and a value. The value must be contained inside of quotation marks (either double or single as long as they match). For example, id and class are the identifiers and "intro" and "narrow".
