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