What is a CSS filter?

Answer by  compkat (37)

A Cascading Style Sheet (CSS) filter is a hack or coding technique that can hide or reveal the CSS markup. One web page viewed on different broweser may have slightly to totally different appearances, using CSS filters can help reliably deliver a consistant appearance to the page no matter the browser.

Answer by  AdieC (10)

A CSS Filter stands for Cascading Style Sheets used in webpage coding. It allows you to set attributes for multiple HTML elements at once.