So I have a site that I need to be functional both on mobile devices and on computers. I'm using bootstrap-responsive and have gotten a lot of things to work. Currently I'm working on the hero-unit for the front page. I have a page header that I would like to auto-scale according to screen size. The main bootstrap site (http://twitter.github.com/bootstrap/) makes use of something like what I want to do with their main page header. Any help is appreciated.

Relevant Code:

```
<div class="container">
        <div class="hero-unit">
            <div class="page-header">
                <h1>Page Header</h1>
            </div>
            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris arcu dolor, dictum scelerisque gravida nec, vulputate in odio. Pellentesque sagittis ipsum et mauris elementum vitae molestie ipsum blandit. Mauris tempus hendrerit arcu, sed vestibulum justo tempor a. Praesent sit amet odio ligula. Morbi sit amet leo vestibulum neque bibendum ullamcorper sed ut ante. Vestibulum id diam quis ipsum aliquet vestibulum. Donec vulputate auctor pharetra.</p>
            <a href="#" class="btn btn-large btn-primary">Learn More</a>
        </div>
    </div>

```

EDIT: Here's another example of it. <http://www.screenlight.tv/>
If you resize your window on that page, the header resizes accordingly. I've tried looking at the source and I'm having a hard time finding it.