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