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