Most of the filters demoed

The drop-shadow filter lets us apply a shadow that confirms to the alpha index of the image, in other words transparent sections do not add a shadow, as a box-shadow would, as demoed by the arrow

As you might have noticed, that filter to filter transistion wont work unless you have the same filters applied with different levels of effect as in zeroing that filter out to remove it, but. you can see the transition if you click No Filter then click on the desired filter.