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