how to italicize in html

HTML
<i>this is italic</i><!--
	You have 2 options
-->
<i>This text is the original italic</i>
<em>This is actually emphasising a phrase, but will do just the same</em><html>
 <head>
   <title>Italic Text</title>
 </head>
 <body> 
   <p>Use the em element to <em>indicates emphasized</em> content.</p>
 </body>
</html>
Source

Also in HTML: