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