animate string speeds 'show', 'hide' don't work as expected

[erangalp]

When animating the CSS properties 'width' and 'height', the string speeds 'show' and 'hide' show a small stutter in certain conditions. Specifically, when the element being animated has padding, the animation will stop/start when the property is equal to 0 pixels, but still showing the padding. This might be by design, but the default slideDown / slideUp animations use this behavior, making them look less then ideal.

Attached use case shows two divs - one with padding and one without. The div with the padding is never really hidden (since it stops resizing at the padding).

[dmethvin]

The CSS height/width excludes border and padding; you can animate those properties separately however using .animate() to get a smoother transition.