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