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