The meaning of various attributes in CSS3_html/css_WEB-ITnose

box-shadow: shadow offset value (can take positive and negative values); shadow vertical offset value (can take positive and negative values); shadow blur value; shadow color

FireFox support Box Shadow: -moz-box-shadow:2px 2px 5px #333;

Safari and Chrome with webkit kernel support Box Shadow: -webkit-box-shadow:2px 2px 5px #333;

Opera supports Box Shadow: box-shadow:2px 2px 5px #333;

IE does not support Box Shadow;

Knowledge expansion:

Gecko (used by FireFox browser)

webkit (developed by Safari Apple, used by Chrome)

Trident (used by IE browser)

Opera browser developed by a Norwegian company OPEN Browser

Netscape Netscape Browser