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