In most cases, these filters are invoked from a document script program. There are many filter functions. Other cases are noted in the following descriptions. This filter sets the level of opacity for an element. This filter is used to blur the content of an element.
Parameters can control the degree of blurring, and the direction in which the blur is applied.
Dynamic scripts can use this to change the color that is transparent. This filter creates a drop shadow effect for the text content of an element. Various supported parameters define the direction and size of the shadow. This is only supported by the div , marquee , span , table , td and th elements. This filter adds a radiant glow around the text content of an element.