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