Sometimes webkit renders differently in chrome and the best way to target it would be:
<code>
body:nth-of-type(1) [css selector]{
[css style]
}
</code>
For example, to target div#id, simply use:
<code>
body:nth-of-type(1) div#id{
display:block;
}
</code>
update
wrong, this affects also firefox 3.6 +
use this instead:
@media screen and (-webkit-min-device-pixel-ratio:0) {
[styles inside]
}