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