#custom-alert-backdrop{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.3);display:none;align-items:center;justify-content:center;z-index:9999}#custom-alert-box{border:1px solid #ccc;border-radius:6px;padding:20px;max-width:450px;box-shadow:0 4px 10px rgba(0,0,0,.2);font-family:sans-serif}#custom-alert-box p{margin:0 0 20px;font-size:16px}