which element is responsible for making the text italic in html code example

Example 1: how to make html text italic

<!-- To make text italic in HTML -->
<p> You have to use <em> To make you text italic instead of </em> 
  <i> because this tag styles the text to be italic not changes real text</i> </p>

Example 2: how to italicize text in html

<i>This is an example of Italic</i>