title: Question of standards: I, EM, B, STRONG, BIG, SMALL
body: <p>In real work, I always use EM for italics, STRONG for selection. And SMALL.</p>
  
  <p>I decided to update their knowledge in HTML + decided to look towards the HTML 5</p>
  
  <p>So, xHTML 1.0 strict, as the language of separating flies and cutlets, and allowed the following inline elements related to the text:</p>
  
  <p>I, EM, B, STRONG, BIG, SMALL</p>
  
  <p>here, I came across the first question - why the tags B and I have not been eliminated or at least not become deprecated in XHTML? After all, if you look at the DTD, then about the tag B &amp; I is clearly written:</p>
  
  <pre><code>&lt;! ELEMENT b% Inline;&gt; &lt;! - Bold font -&gt;
  &lt;! ELEMENT i% Inline;&gt; &lt;! - Italic font -&gt;
  </code></pre>
  
  <p>Is the fat content and courses are structural, logical feature? This is clearly a visual feature.</p>
  
  <p>Next, I looked at <a href="http://www.w3schools.com/html5/html5_reference.asp" rel="nofollow noreferrer">http://www.w3schools.com/html5/html5_reference.asp</a> and was surprised that the tag BIG somehow removed from the HTML5, and its logical equivalent SMALL - left! Although BIG was even in XHTML 1.0 Strict!</p>
  
  <p>Where is the logic in such permutations? Explain.</p>