Element block pseudo-class :active generated with font-size 16px border-radius cursor default transition box-shadow 1px 1px 1px rgba(0,0,0,0.3) z-index auto outline none text-shadow 1px 1px 1px rgba(0,0,0,0.2) margin 0px transform box-sizing content-box opacity 1 border 0px rgba(0,0,0,1) solid height auto overflow hidden float none background line-height 1 display block width 160px position static padding 20px font-weight normal