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