Firefox和IE上的负边距问题

Question

I have tried every possible resolution on this thing. No luck still, I am having a problem with negative margins on IE and FF.

I just need to set the negative margin on an item but it only affects the element and leaves its children behind.

Check out the effect here. http://s-4-k.co.uk/s4k2/

Can someone help me out please. I am desperate.

Answer 1

请对上层div使用float none，它将使所有浏览器的行为相同，然后根据需要将margin设置为负数。

.row-fluid .span12 { float: none; }

Answer 2

添加bottom: -20px // replace this value with yours对我bottom: -20px // replace this value with yours 。