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