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

Code Example 1

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

Code Example 2

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

</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

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.

Learn ReactJs, React Native from akashmittal.com