Using the <strong/> tag as a call to action

Question

I'm creating a subscription page and there are four packages available for purchase. At the bottom of the package description there's a button link to Learn More about the package. In general, is it valid to use the <strong/> as a call to action? I've seen it used in the context of of a sentence or within a paragraph but never as its own entity.

Example

... 
<section>
  <h1>Page Heading</h1>
  <p></p>
</section>

<section>
  <h2>Package Options</h2>

  <div>
    <div>
      <header>                      
        <h3>Package 1></h3>
        <h4>Package 1: Description</h4>
      </header>
      ...
      <a href=""><strong>Learn More</strong></a>
    </div>
  </div>
</section
...

Answer 1

In HTML5, the strong element can be used for "strong importance, seriousness, or urgency".

I think none of these three cases matches your example, so you should not use the strong element. While "importance" may sound relevant, the definition makes clear that it’s for distinguishing the important part from other parts, but that doesn’t seem to be the case in your example.