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