Element block pseudo-class :active generated with display block line-height 1 cursor default margin 0px border-radius background transition box-shadow 1px 1px 1px rgba(0,0,0,0.3) position static border 3px rgba(0,0,0,1) solid transform padding 20px height auto float none z-index auto font-size 16px font-weight normal box-sizing content-box overflow hidden width 160px text-shadow 1px 1px 1px rgba(0,0,0,0.2)