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