div.contacts-page-container {
  display: flex;
  flex-direction: row;
  padding: 20px;
  background-color: #f0f0f0;
}

div#user-list-container {
  min-width: 50%;
  height: 90%;
}

div#videos {
  width: 100%;
  height: 90%;
  display: flex;
  flex-direction: row;
}

div#videos > * {
  margin: 5px;
}

div#subscriber {
  width: 50%;
  background-color: lightgrey;
}

div#publisher {
  width: 50%;
  background-color: grey;
}

li {
  list-style: none;
}

.end-btn {
  width: auto;
  height: auto;
  position: absolute;
  bottom: 40px;
  left: 10px;
}

.selected-user {
  color: green;
}

#contact-to-call {
  background-color: #f0f0f0;
}