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