Untitled

How to add section numbers (1.2, 3.4.1) automatically using CSS?
h1, h2, h3, h4 {
  font-weight: normal;
}
h1 { font-size: 140%; }
h2 { font-size: 120%; color:#049;}
h3 { font-size: 110%; color:#06C;}
h4 { font-size: 105%; color:#09C;}

...

<h2>heading21</h2>
...

<h3>heading31</h3>
...

<h2>heading22</h2>

body {counter-reset:section;}
    h1 {counter-reset:subsection;}
    h1:before
    {
    counter-increment:section;
    content:"Section " counter(section) ". ";
        font-weight:bold;
    }
    h2:before
    {
    counter-increment:subsection;
    content:counter(section) "." counter(subsection) " ";
    }

<p><b>Note:</b> IE8 supports these properties only if a !DOCTYPE is specified.</p>
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