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