title: Difference between "bdo" element and other elements with "dir" attribute?
body: <p>What is the difference between using <code>bdo</code> </p>
  
  <pre><code>&lt;bdo dir="rtl"&gt;CIBARA english EMOS&lt;/bdo&gt;
  </code></pre>
  
  <p>and using most tags with <code>dir</code> attribute like </p>
  
  <pre><code>&lt;span dir="rtl"&gt;CIBARA english EMOS&lt;/span&gt;
  </code></pre>
  
  <p>I know this question is similar to <a href="https://stackoverflow.com/questions/19163756/should-i-always-use-bdo-for-text-direction">should i always use bdo for text direction?</a>, but I still do not understand why the use of the <code>dir</code> attribute is "adequate" and <code>bdo</code> is not needed. </p>
  
  <p>Doesn't the <code>dir</code> attribute "override the inherent directionality of letters" anyway? In which instances must I use <code>bdo</code>?</p>