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