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