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