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