Use efficient CSS selectors with Magento

[trihung]

I'm using Magento source for my shop, it's here <snip>. I'm check mysite with [gtmetrix.com...] and there is something wrong in CSS - Use efficient CSS selectors. How to fix? help me, please.

[edited by: bill at 2:01 am (utc) on Mar 31, 2013]
[edit reason] No links to your site as per TOS [/edit]

[phranque]

welcome to WebmasterWorld, trihung!

if you click on the "Use efficient CSS selectors" it will list the specific issues.

[trihung]

Thanks phranque,
I'm newbie :(