title: Changing header size on blog posts only
body: <p>I would like to change the size of header text on all my blog posts but keep the header size on all other pages.</p>
  
  <p>I have tried the following</p>
  
  <pre><code>.entry-title a {
      font-size: 30px;
  }
  </code></pre>
  
  <p>But it has no effect.</p>
  
  <p>Would anybody know how to achieve this?</p>
  
  <p>thanks very much</p>