Filters

Try drop-shadow filter. Because the image has alpha transparency, the shape of the object gets the specified shadow. This is different from the box-shadow, where the image border gets the shadow.

Try box-shadow (press check-box on the left upper side) and compare it against drop-shadow filter.

You can choose multiple filters by pressing the CTRL key together with the selection. If you write multiple filters, separate them by spaces. Try the following filter:

filter: 
  drop-shadow(110px 30px 1px blue)
  drop-shadow(-110px -30px 1px red)