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