Alternative text is a word or phrase whose voice, mood, or role differs from the surrounding prose. In HTML, mark this kind of semantic text with the <i> element. Browsers normally render the marked text in italics. section 12.2.6
Use it for text that is not simply regular narrative, such as book and movie titles, publication names, technical terms, foreign words or phrases, and a person’s thoughts. The italics signal the text’s distinct role to readers. section 12.2.6
Marking up a book title
Place <i> before the alternative text and </i> after it: <p>Let's visit the land of Narnia, first introduced to us by C.S. Lewis in <i>The Lion, the Witch, and the Wardrobe</i> (1950).</p> section 12.2.6
Do not confuse <i> with <em> or <strong>. Use <em> when words need added stress, and use <strong> when text is inherently crucial. Text-level elements can be nested when more than one meaning applies. section 12.2.6
<p>
Let's visit the land of Narnia, first introduced to us by
C.S. Lewis in <i>The Lion, the Witch, and the Wardrobe</i> (1950).
</p>
This example shows an <i> element surrounding a book title within an ordinary paragraph. section 12.2.6



