title: css display:block and its opposite
body: <p>To separate one line of text onto two lines I am using:</p>
  
  <pre><code>&lt;p&gt;Line one &lt;span&gt;line two&lt;/span&gt;&lt;/p&gt;   
  p span { 
       display:block
  }
  </code></pre>
  
  <p>But on the mobile version of my page I would like to remove that block on the element so that it displays all on one line. Is there an opposite of display:block? Am I using the correct approach to accomplish this?</p>