This property applies graphical effects like blurring or color shifting to an element before it is displayed.
|Filter Effects Module Level 1||"none | <filter-value-list>", where <filter-value-list> = "[ <filter-function> | <url> ]+"|
filterwas an Internet Explorer proprietary property in IE5.5 to IE9 (it was removed in IE10). This IE proprietary property is now considered obsolete and should no longer be used. Use the "new" non-proprietary
filterproperty instead, but note that it is still considered experimental at the time of this writing.