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