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