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