+
+ if ( "zoom" in div.style ) {
+ // Check if natively block-level elements act like inline-block
+ // elements when setting their display to 'inline' and giving
+ // them layout
+ // (IE < 8 does this)
+ div.style.display = "inline";
+ div.style.zoom = 1;
+ jQuery.support.inlineBlockNeedsLayout = div.offsetWidth === 2;
+
+ // Check if elements with layout shrink-wrap their children
+ // (IE 6 does this)
+ div.style.display = "";
+ div.innerHTML = "<div style='width:4px;'></div>";
+ jQuery.support.shrinkWrapBlocks = div.offsetWidth !== 2;
+ }
+
+ div.innerHTML = "<table><tr><td style='padding:0;border:0;display:none'></td><td>t</td></tr></table>";
+ var tds = div.getElementsByTagName("td");
+
+ // Check if table cells still have offsetWidth/Height when they are set
+ // to display:none and there are still other visible table cells in a
+ // table row; if so, offsetWidth/Height are not reliable for use when
+ // determining if an element has been hidden directly using
+ // display:none (it is still safe to use offsets if a parent element is
+ // hidden; don safety goggles and see bug #4512 for more information).
+ // (only IE 8 fails this test)
+ jQuery.support.reliableHiddenOffsets = tds[0].offsetHeight === 0;
+
+ tds[0].style.display = "";
+ tds[1].style.display = "none";
+
+ // Check if empty table cells still have offsetWidth/Height
+ // (IE < 8 fail this test)
+ jQuery.support.reliableHiddenOffsets = jQuery.support.reliableHiddenOffsets && tds[0].offsetHeight === 0;
+ div.innerHTML = "";
+
+ body.removeChild( div ).style.display = "none";
+ div = tds = null;