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