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