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