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