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