title: Can a checkbox be checked by default in the stylesheet, rather than in an HTML attribute?
body: <p>Like the title says: can a checkbox be checked by default in the stylesheet, rather than in an inline HTML attribute?</p>
  
  <p>Example from w3schools.com, the "car" box is checked:</p>
  
  <pre><code>&lt;form action="demo_form.asp"&gt;
  &lt;input type="checkbox" name="vehicle" value="Bike"&gt; I have a bike&lt;br&gt;
  &lt;input type="checkbox" name="vehicle" value="Car" checked&gt; I have a car&lt;br&gt;
  &lt;input type="submit" value="Submit"&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>I'm making an "I agree to the Terms and Conditions" checkbox, and due to the clunky website I'm making this on, I can't create inline CSS. Instead, I can assign this field a css class, and edit the class in the larger stylesheet. </p>
  
  <p>If it makes it easier, this will be the only checkbox on the page.</p>