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