Force scrollbars

This is a geek post.
Some v. ugly code for forcing scrollbars to appear.
Convenient if you've got a centred nav bar, which bounces around as you move between pages which have more or less than one screenfull of content.

<style>
<!-- html {height : 100.1%;} -->
</style>

Please, if you have something as easy to remember, but less crass. Let me know.

J