Check out example codes for "how to create a html file". It will help you in understanding the concepts better.

Code Example 1

Step 1: Open Notepad on PC
Step 2: Open TextEdit (Mac) Notepad (Windows)
Step 3: Write Some HTML. Write or copy some HTML into Notepad.
Step 4: Save the HTML Page with (.html) extension. Save the file on your computer.
Step 5: View the HTML Page in Your Browser.

Code Example 2

<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>

<h1>My First Heading</h1>
<p>My first paragraph.</p>

</body>
</html>

Code Example 3

<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>

<h1>This is a Heading</h1>
<p>This is a paragraph.</p>

</body>
</html>

Code Example 4

First, you have to tick "File name extensions" if you haven't.
Secondly, you need to make a file somewhere in YOUR user. Make sure that it 
ends with .html
Then, copy this code:
<!DOCTYPE html>
<html>
  <head>
  	<title>Name your document title</title>
  </head>
  <body>
  	Put your document apperance here...
  </body>
</html>
Finally, open the HTML document and then you have your page!

Code Example 5

Make a folder
Create a file with .html at the end of it and open it with a text editor

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