title: How to decrease counter without using counter-reset
body: <p>I've searched for this but I couldn't find anything similar to my problem.</p>
  
  <p>Basically what I have is a counter called <code>page</code> and I'm setting up a page counter like this:</p>
  
  <p><code>content: "Page " counter(page);</code> 
   that is displayed like this on screen -> <strong>Page 1</strong></p>
  
  <p>Everything is working fine, but what I need is to set the page counter to start from <strong>0</strong> instead of <strong>1</strong></p>
  
  <p>I'm using a Wiki (<em>confluence</em>) and I don't have access to where <code>page</code> is defined, because it's just a variable meant to be used for CSS counters like before.</p>
  
  <p>I tried to following, but with no luck at all:</p>
  
  <p><code>content: "Page " counter(page) - 1;</code> </p>
  
  <p><code>content: "Page " counter(page - 1);</code> </p>
  
  <p><code>content: "Page " calc(counter(page) - 1);</code></p>
  
  <p>I've also tried to prepend <code>counter-reset</code>:</p>
  
  <pre><code>counter-reset: page -1;
  content: "Page " counter(page);
  </code></pre>
  
  <p>Now my question is, can I set the counter to start from <strong>0</strong> without using any <code>counter-reset</code> property? Or, in the previous example where I actually tried to use the <code>counter-reset</code>, did I make any mistake? Am I missing something?</p>