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