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