如何在IE7中添加负边距？

Question

How can I add negative margin in IE7? My code is:

.product-tabs {
    position: relative;
    margin: -40px 0 0 -17px;
}

In all browsers it works like I wan't except in IE7, I tried to replace margin with top:-40px; left:-17px; top:-40px; left:-17px; but then block moves up and leaves empty space at the bottom. Also I tried changing position: relative to position: absolute , but then .product-tabs parent div height is 0.

Answer 1

used to this

.product-tabs {
    position: relative;

top:-40px;
left:-17px;bottom:0;
}