Svg Drop Shadow. ShadowOpacity number Using positive values for the ShadowOffsetX and ShadowOffsetY properties will drop the shadow in the lower-right corner of the box. Unfortunately this just added a drop shadow to the box object and not the paths in the SVG.
Instead it is a standard deviation value equivalent to the stdDeviation attribute in SVG filters and is half the blur-radius used in the shadow properties. The first example offsets a rectangle with then blend the original on top of the offset image with. The values that we can specify for the drop-shadow filter function are nearly identical to what we would specify for box-shadow and text-shadow.
It can only be used inside a element.
A filter primitive in SVG is an element that takes some sort of image or graphic as an input then outputs that image or graphic it when its called. Palmyra Typography With Drop Shadow. The element works in combination with other filter primitives to add a drop shadow to the graphic. Example of creating an SVG drop shadow with CSS.