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