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