As with most trades, there are some tricks about web design that you only learn through experience. Building complex layouts that avoid browser-specific hacks is certainly one of those tricks. Yes, there are some hard and fast rules you can teach new designers - like how IE version 6 and below screw up the box model - but there are some pitfalls that will just drive you batty until you’ve expended countless, agonizing hours muttering under your breath as you write and re-write your CSS.

I’ve been there, done that, and built out enough standards-based designs to diagnose (and/or avoid) just about any rendering anomaly. As useful as that skill is though, I still occasionally find bugs that leave me completely bewildered. Last week for instance, I had the same mind-melting problem pop up on two different sites. While the individual cases were very different, the common denominator was that they were absolutely-positioned links that weren’t clickable or hoverable in any version of IE. I didn’t write the code in question on either of these sites, but there was nothing wrong with it. Here’s a quick example:

HTML 

<a class="clickme" href="#">Why can't you click me? :(</a>

CSS a72c5a68e8154da099cd70b2c61f3374

If I were doing something like the above example, I would typically put a background image in the link because, well, that’s what text-replacement is all about. This particular link was placed over an image with a clickable area and therefore needed to be transparent. No problem in Firefox, Safari, or Opera…but when I checked the site in IE, the link wasn’t working.

In troubleshooting the issue, I put a border around the link and there it was in the right position with the right dimensions. Next, I added a background to the hover state and attempted to hover the link area with the mouse. Nothing happened, so I added a background-color to the non-hover state and it worked fine. I took the background-color off and it was broken again. Of course, the block needed to be transparent so at this point i was getting irritated. That’s when an idea came to me that I’m sure I’ll catch a lot of flack for: that’s right, I used a spacer gif.

I can think of several ways to avoid doing the link this way, but given the constraints of it having to be a transparent, absolutely positioned link, this seems like a good solution. Please check out the demo in IE and let me know if I’m crazy (you probably already knew that) and what you might do differently.