title: What's the use of 'alt' attribute in the image tag of HTML5?
body: <p>If the code in HTML5 is:
  (*** stands for whatever information we need to fill, it is just for example not a keyword)</p>
  <pre><code>&lt;img src = &quot;***.jpg&quot; width = &quot;***&quot; height = &quot;**&quot; alt = &quot;*****&quot;&gt;
  </code></pre>
  <p>Then here what function does the alt attribute actually do?</p>