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