Tags
The basic structure of an HTML document includes tags, which surround content and apply meaning to it.
Change your document so that it looks like this:
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
This is my first web page
Now save the document again, go back to the web browser and select "refresh" (which will reload the page).
The appearance of the page will not have changed at all, but the purpose of HTML is to apply meaning, not presentation, and this example has now defined some fundamental elements of a web page.
The first line on the top that starts
To get back to the point, is the opening tag that kicks things off and tells the browser that everything between that and the closing tag is an HTML document. The stuff between and is the main content of the document that will appear in the browser window.
Closing tags
The