Press <strong>ESC</strong> to enter the slide overview.
</p>
<p>
- Hold down alt and click on any element to zoom in on it using <a href="http://lab.hakim.se/zoom-js">zoom.js</a>. Alt + click anywhere to zoom back out.
+ Hold down the <strong>alt</strong> key (<strong>ctrl</strong> in Linux) and click on any element to zoom towards it using <a href="http://lab.hakim.se/zoom-js">zoom.js</a>. Click again to zoom back out.