html WWW.CHARTJS3.COM (Chart JS ) 모달 헤더 body close css .bar_modal { z-index: 10; position: fixed; margin: 0; padding: 0; left: 0; top: 0; height: 100vh; width: 100%; background: rgba(0,0,0,0.3); transition: opacity .2s; } .bar_modal.hide { opacity: 0; z-index: -10; } .modal { background: #fff; width: 300px; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); text-align: ce..