The IFRAME transparent background makes the compression and deformation of images in IE clearer, and IE6 supports Min-height.

IFRAME transparent background from Wudang personal space by cly84920

/* In the IFRAME element */
<IFRAME src = "content.html" allowtransparency = "true">
</Iframe>

/* In the IFRAME docuement, in this case content.html */
Body {
Background-color: transparent;
}

Make the compression and deformation of IE images clearer. From user space by cly84920

IMG {-MS-interpolation-mode: bicubic ;}

Enable IE6 to support Min-heightfrom user space by cly84920

Selector {
Min-Height: 500px;
Height: Auto! Important;
Height: 500px;
}