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