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