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