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