body {
  margin: 0;
  background: #111;
  color: #fff;
  display: flex;
  height: 100vh;
  font-family: Arial;
}
#list {
  width: 320px;
  background: #1e1e1e;
  padding: 10px;
  overflow-y: auto;
}
.stream {
  background: #2a2a2a;
  margin-bottom: 10px;
  padding: 10px;
  border-radius: 6px;
  cursor: pointer;
}
.stream:hover {
  background: #3a3a3a;
}
.live {
  color: #ff4d4d;
  font-weight: bold;
}
#player {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}
iframe {
  width: 90%;
  height: 90%;
}