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