Element block pseudo-element :after generated with box-sizing content-box box-shadow 1px 1px 1px rgba(0,0,0,0.3) opacity 1 outline none height auto overflow hidden position static background text-shadow 1px 1px 1px rgba(0,0,0,0.2) transform font-size 16px border-radius transition display block margin 0px float none padding 20px cursor default z-index auto font-weight normal line-height 1 width 160px border 8px rgba(0,0,0,1) solid