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