.cm2-report-popup.hidden { display:none; }
.cm2-report-popup {
  position:fixed; top:0; left:0; right:0; bottom:0;
  background:rgba(0,0,0,.5); display:flex;
  justify-content:center; align-items:center; z-index:9999;
}
.cm2-report-box {
  background:#fff; padding:20px; border-radius:10px;
  max-width:400px; width:90%;
}
.cm2-report-box h3{margin-top:0;}
.cm2-report-box button { margin-top:10px; }