<html> (Specifies that the following document is in HTML format

<html> (Specifies that the following document is in HTML format.)
<head> (Specifies the beginning of the "Head" section of the web page.)
<title>My webpagetitle> (Displays "My webpage" in the title of the browser window.)
</head> (Specifies the end of the "Head" section.)
<body> (Specifies the beginning of the "Body" section of the web page.)
<center><h1>Welcome to my webpage!h1>center> (Displays "Welcome to my webpage!" centered in your browser window. The "H1" tag specifies that this text will be displayed using the largest Heading size.)
 (Insert three blank lines.)
This is an example paragraph which is un-centered. Line breaks and extra spaces are ignored and any text entered here will be automatically formatted by your web browser. (Self-explanatory)
 (Insert one blank line.)
<center>This is an example of a centered paragraph. Any text that is entered here will be centered when displayed in a web browser.p>center> (Self explanatory)
 (Insert two blank lines.)
<marquee>This is a sample marquee.marquee> (Creates a sample scrolling marquee.)
 (Insert two blank lines.)
<center><img src="image.gif">center> (Adds a centered image titled "image.gif" to the web page.)
body> (Specifies the end of the "Body" section.)
html> (Specifies the end of the HTML file.)