Improve Form Field Accessibility with the label Element

Summary

The label tag wraps text for a specific form control item.
The for attribute on a label tag explicitly associates that label with the form control and is used by screen readers.
The value of the for attribute must be the same as the value of the id attribute of the form control.

Final Code

<body>
  <header>
    <h1>Deep Thoughts with Master Camper Cat</h1>
  </header>
  <section>
    <form>
      <p>Sign up to receive Camper Cat's blog posts by email here!</p>


      <label for="email">Email:</label>
      <input type="text" id="email" name="email">


      <input type="submit" name="submit" value="Submit">
    </form>
  </section>
  <article>
    <h2>The Garfield Files: Lasagna as Training Fuel?</h2>
    <p>The internet is littered with varying opinions...</p>
  </article>
  <img src="samuraiSwords.jpeg" alt="">
  <article>
    <h2>Defeating your Foe: the Red Dot is Ours!</h2>
    <p>Felines the world over have been waging war...</p>
  </article>
  <img src="samuraiSwords.jpeg" alt="">
  <article>
    <h2>Is Chuck Norris a Cat Person?</h2>
    <p>Chuck Norris is widely regarded as...</p>
  </article>
  <footer>&copy; 2018 Camper Cat</footer>
</body>