h5bp/html5-boilerplate — Issue #1005: Look into updating .ir to use "new and improved" method
Author: davidmurdoch
Created: 2012-03-01 20:45:24+00:00
State: open

[This article](http://www.zeldman.com/2012/03/01/replacing-the-9999px-hack-new-image-replacement/) claims that -9999px (or -999em in our case) has a noticeable performance implications when running animations on the iPad 1.

The new CSS would be something like:

.ir {
text-indent: 100%;
white-space: nowrap;
overflow: hidden;
}

Also, H5BP has some non-obvious tweaks in the existing `.ir` class that would need to be evaluated if this new method were to be implemented.