Element block pseudo-class :active generated with width 160px line-height 1 overflow hidden margin 21px border 0px rgba(0,0,0,1) solid height auto background text-shadow 1px 1px 1px rgba(0,0,0,0.2) display block border-radius box-sizing content-box cursor default transition padding 20px font-weight normal float none transform z-index auto position static font-size 16px box-shadow 1px 1px 1px rgba(0,0,0,0.3)