User Manual HTML5

Some conventions must be followed while using HTML:

Use a Consistent CSS:

A consistent style must be used while writing an HTML code to make a code simple and easy to understand. A small, clean, and well-formed code is always recommended.

Use Correct Document Type:

The document type should be declared at the start of an HTML code. The <!DOCTYPE html> tag can also be used to maintain the lowercase practice.

Example:

&lt;!DOCTYPE html&gt;

Use Lower Case Element Names:

In HTML5 it is recommended to use only the lowercase letters in element names to avoid mixing the lowercase and uppercase letters in elements. The lowercase also provides a neat and clean look along with being easy to write.

Example:

Very Bad practice:

<!DOCTYPE html>
<html>
<body>
<ARTICLE>  
<p>Hello World!!</p>  
</article>  
</body>
</html>

Bad practice:

<!DOCTYPE html>
<html>
<body>
<ARTICLE>  
<p>Hello World!!</p>  
</ARTICLE>  
</body>
</html>

Good practice:

<!DOCTYPE html>
<html>
<body>
<article>  
<p>Hello World!!</p>  
</article>  
</body>
</html>

Close all HTML Elements:

Though it is not mandatory but is recommended to close all tags in HTML 5.

Example:

Bad practice:

<!DOCTYPE html>
<html>
<body>
<ARTICLE>  
<p>Hello World!!
</ARTICLE>  
</body>
</html>

Good practice:

<!DOCTYPE html>
<html>
<body>
<article>  
<p>Hello World!!</p>  
</article>  
</body>
</html>

Close empty HTML Elements:

Though it is not mandatory but is recommended to close empty tags in HTML 5.

Example:

Good practice:

<meta charset="utf-8">

Don’t Omit <html> and <body> elements:

Though it is not mandatory but is recommended to use both the <html> and <body> elements in HTML 5. The <html> tag is often used to specify the page language.

Example:

Bad practice:

<!DOCTYPE html>
<ARTICLE>  
<p>Hello World!!
</ARTICLE>

Good practice:

<!DOCTYPE html>
<html>
<body>
<article>  
<p>Hello World!!</p>  
</article>  
</body>
</html>

 

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