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