HTML Formatting 
HTML Formatting is an interaction of arranging text for a better look. You can see some Html text formatting tags on the table below.
 
   
Element Name Description
<b> Used bold a text
<i> used to make text italy
<strong> Important text
<em> used to display content in italy
<mark> used to highlight text
<u> used to underline text
<sup> used to display text above the content
<sub> used to display text below the content
<del> deleted text
<ins> inserted text
<big> used to make big text
<small> used to make small text
Example: 
<!DOCTYPE html>
<html>
<body>
<h2>text Formatting</h2>
<p>this is <b>Bold text</b></p>
<p>this is <i> italy text</i></p>
<p>this is <strong>Very important text</strong></p>
<p>this is <em>Emphasized text</em></p>
<p>this is <mark>Highlighted text</mark></p>
<p>this is <u>Underlined text</u></p>
<p>this is <sup>Superscript text</sup></p>
<p>this is <sub>Subscript text</sub></p>
<p>this is <del>Delated text</del> and this is <ins>Inserted text</ins> </p>
<p>this is <big>Big text</big> and this is <small>Small text</small></p>
</body>
</html>
</html>
Output