How to increase/decrease element font-size on click event using jquery?
<p>I am doing a site for the visually impaired. I have three button:</p>

<ol>
<li><kbd>increase font</kbd></li>
<li><kbd>reduce the font</kbd></li>
<li><kbd>in normal mode</kbd></li>
</ol>

<p>I need by clicking add <code>+2</code> pixels for <code>font-size</code> for the class <code>*</code>. Please help how it can I be implemented in javascript.</p>