If you set min-height onto an element it causes breaks in slide animations.

Basically because the min-height definition is meant to limit the smallest height an element can be at when jQuery tries to animate the height to a value smaller than the min-height the browser holds the element at that min-height instead of continuing the shrinking up until the animation finishes and closes. Likewise when showing something the element immediately jerks out to the min-height then continues from there after a delay.

The fix is to treat min-height similar to display or rather overflow and set it to 0 while animating and then reset when finished.

I have uploaded a test case of the issue, and a version with the fix:

Issue: http://test.4query.org/slidefix/min-height-issue.html

Fixed: http://test.4query.org/slidefix/min-height-fixed.html

I saw bug #1004 but it had no working test case and was questionable if it was the same bug or not.