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