styles.css

.controls {
  background-color: #dcd3c4;
  bottom: 0;
  left: 0;
  height: 48px;
  margin: 0;
  position: fixed;
  right: 0;
}

.controls .form-control {

}

.messages {
  background-color: #dfded4;
  bottom: 148px;
  color: #432f21;
  left: 0;
  list-style-type: none;
  margin: 0;
  padding: 0;
  position: fixed;
  overflow: auto;
  right: 0;
  top: 0;
}

.messages li {
  /*border-bottom: 1px solid rgba(0,0,0,0.1);
  border-top: 1px solid rgba(255,255,255,0.1);*/
  /*border-top: 1px solid #dcd3c4;*/
  padding: 8px 16px;
  position: relative;
}

.message li:first-child {
  border-top-style: none;
}

.messages li div {
  clear: both;
}

.messages li .user-name {
  color: #e29829;
  font-size: 1.2em;
  font-weight: bold;
}

.timestamp {
  color: rgba(0,0,0,0.5);
  font-size: 0.8em;
  text-align: right;
}

.users {
  background-color: #dfded4;
  border-top: 1px solid #dcd3c4;
  bottom: 48px;
  color: #432f21;
  height: 100px;
  left: 0;
  list-style-type: none;
  margin: 0;
  overflow: auto;
  padding: 0;
  position: fixed;
  right: 0;
}

.users li {
  padding: 4px 8px;
}