title: Stylesheet_link_tag :all versus :media =>all
body: <p>I created a new Rails application from a scaffold, but the tutorial claims the following will appear:</p>
  
  <pre><code>&lt;%= stylesheet_link_tag    "application", :media =&gt; "all" %&gt;
  </code></pre>
  
  <p>while I got:</p>
  
  <pre><code>&lt;%= stylesheet_link_tag    :all %&gt;
  </code></pre>
  
  <p>What is the difference between them? Which should I use? Why?</p>