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