session-desktop/stylesheets/index.css

.clearfix:before, .clearfix:after { content: "\0020"; display: block; height: 0; overflow: hidden; }
.clearfix:after { clear: both; }
.clearfix { zoom: 1; }

body {
  min-width: 320px;
  min-height: 500px;
}
.number.error {
  background-color: #ffdddd;
}

.gutter {
  padding-bottom: 0;
  overflow: hidden;
}

#contacts {
  overflow-y: scroll;
}
#contacts::-webkit-scrollbar {
  display: none;
}

.contact.selected {
  background-color: aliceblue;
}

.gutter .contact .avatar {
  background-position: center;
  background-size: cover;
}

.conversation {
  margin: 0;
  padding: 0;
}

ul.discussion {
  margin: 0;
  padding: 10px;
  box-sizing: border-box;
}

li.entry .sender {
  font-size: 0.75em;
  opacity: 0.54;
}

li.entry .avatar {
  height:32px;
  width:32px;
  border-radius:32px;
  cursor:pointer;
  display:inline-block;
  float:left;
  clear:both;
  background-color:whitesmoke;
}

li.entry.outgoing .avatar {
  display: none;
}

li.entry img {
  max-width: 100%;
  margin-top: 5px;
}

.send .attachments img {
  width: 30px;
  height: 30px;
}

.bootstrap-tagsinput .tag {
  background-color: #00badd;
  padding: 5px;
  border-radius: 3px;
}

.timestamp {
  font-size: 0.75em;
  display: block;
}

.incoming .timestamp {
  color: gray;
}

.outgoing .timestamp {
  color: whitesmoke;
}