html {
  height: 100%;
}

body {
  height: 100%;
}

div.container-fluid {
  height: 100%;
}

div#participants {
  overflow-y: auto;
}

div.participant {
  background: center no-repeat url("data:image/svg+xml;utf8,<svg class='bi bi-person-fill' width='80' height='45' viewBox='0 0 16 16' fill='currentColor' xmlns='http://www.w3.org/2000/svg'><path fill-rule='evenodd' d='M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1H3zm5-6a3 3 0 100-6 3 3 0 000 6z' clip-rule='evenodd'/></svg>");
  border: 1px solid gray;
  display: inline-flex;
  height: 90px;
  margin: 10px 5px;
  max-width: 160px;
  overflow: hidden;
}

div.participant > video {
  width: 100%;
}

div.participant.main {
  height: inherit;
  margin: 10px 0;
  max-width: 100%;
  width: 100%;
}

div.participant.main > video {
  height: 720px;
}

div.participant.active {
  border: 1px solid crimson;
  box-shadow: 0 0 5px crimson;
}

div.participant.active.pinned {
  border: 1px solid limegreen;
  box-shadow: 0 0 5px limegreen;
}

div.participant:hover {
  cursor: pointer;
}

div.participant::before {
  background-color: black;
  color: white !important;
  content: attr(data-identity);
  font-size: 10px;
  padding: 0 5px;
  position: absolute;
  z-index: 1000;
}

div.participant.main::before {
  font-size: 14px;
  padding: 0 10px;
}

@media (max-width: 576px) {
  div#participants {
    overflow-x: auto;
    white-space: nowrap;
  }

  div.participant.main > video {
    height: 180px;
  }
}

@media (max-width: 768px) {
  div.participant.main > video {
    height: 270px;
  }
}