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