Solutions to CSS invalidation in document type definition models such as loose. DTD and xhtml1-transitional.dtd.

The CSS definition is invalid under loose. DTD and xhtml1-transitional.dtd:

Body {
SCROLLBAR-FACE-COLOR: # f2f2f2;
SCROLLBAR-HIGHLIGHT-COLOR: # ffffff;
SCROLLBAR-SHADOW-COLOR: #999999;
SCROLLBAR-3DLIGHT-COLOR: #999999;
SCROLLBAR-ARROW-COLOR: #999999;
SCROLLBAR-TRACK-COLOR: # ff0000;
SCROLLBAR-DARKSHADOW-COLOR: # ffffff;

Overflow-Y: hidden
}

The solution is

HTML, body {
SCROLLBAR-FACE-COLOR: # f2f2f2;
SCROLLBAR-HIGHLIGHT-COLOR: # ffffff;
SCROLLBAR-SHADOW-COLOR: #999999;
SCROLLBAR-3DLIGHT-COLOR: #999999;
SCROLLBAR-ARROW-COLOR: #999999;
SCROLLBAR-TRACK-COLOR: # ff0000;
SCROLLBAR-DARKSHADOW-COLOR: # ffffff;

Overflow-Y: hidden
}

The new document type definition model uses HTML elements as containers.

Similarly

The result of document. Body. scrollheight is 0.

A new method is required:

VaR eleheight
If(document.doc umentelement)
Eleheight = document.doc umentelement. scrollheight
Else
Eleheight = Document. Body. scrollheight