Answer: <span> and <div> new tags
Explanation:
<!DOCTYPE html>
<html>
<head>
<title>My web page</title>
</head>
<body>
<div>
<p> This is an example <br> Line break</p>
<p> Example of <b>Bold</b> text</p>
<p>Example of <u>underline</u> text</p>
<p> Example of <span style="font-size:20px">Bigger ( font size 20)</span> text</p>
<p> Example of <mark>Mark</mark> text</p>
<p> Example of short quotaion <q>The whole point of getting things done is knowing what to leave undone.</q></p>
<p>Example subscript --> X <sub>2</sub></p>
<p>Example of superscript --> 2 <sup>x</sup></p>
</div>
</body>
</html