title: How to change the font-size uniformly?
body: <p>If I have the following HTML:</p>
  
  <pre><code>&lt;div class="div1"&gt;
     &lt;div class="div2"&gt;
     &lt;/div&gt;
     &lt;div class="div3"&gt;
     &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p><code>div2</code> and <code>div3</code> have their own CSS with font-sizes etc. defined. Is there a way I can reduce the font-size of <code>div1</code> uniformly? That is, take the font size defined in <code>div2</code> and <code>div3</code> and reduce them by say <code>2px</code>? This is similar to how you do <code>Select All -&gt; Ctrl + Shift + &lt;</code> to reduce the size of the selected text by 1 point in word processing software. Any suggestions?</p>