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