session-desktop/css/conversation.css

.conversation {
  box-sizing: border-box;
  position: relative;
  min-height: 64px;
  margin: auto;
  padding: 1em;
  border-radius: 10px;
  border: 2px solid #acdbf5;
  background-color: #7fd0ed;
  color: #fff;
  margin-bottom: 0.5em;
  -webkit-animation-duration: 1s;
  -webkit-animation-name: convoopen;
}

.conversation.closed {
  background-color: #fff;
  color: #7fd0ed;
  -webkit-animation-duration: 1s;
  -webkit-animation-name: convoclose;
}
@-webkit-keyframes convoclose {
  from { background-color: #7fd0ed; }
  to   { background-color: #fff; }
}
@-webkit-keyframes convoopen {
  from { background-color: #fff; }
  to   { background-color: #7fd0ed; }
}

.conversation.closed:hover {
  background-color: #f1fafd;
  cursor: pointer;
  -webkit-animation-duration: 1s;
  -webkit-animation-name: hovercolorfadein;
}
.conversation.closed:not(hover) {
  -webkit-animation-duration: 1s;
  -webkit-animation-name: hovercolorfadeout;
}
@-webkit-keyframes hovercolorfadein {
  from { background-color: #fff; }
  to   { background-color: #f1fafd; }
}
@-webkit-keyframes hovercolorfadeout {
  from { background-color: #f1fafd; }
  to   { background-color: #fff; }
}

.conversation .header {
  padding: 0.3em 0 0.3em 46px;
}
.conversation .btn.destroy {
  float: right;
}
.conversation .image {
  position: absolute;
  top: 8px;
  left: 10px;
  display: inline-block;
  background-color: #fff;
  border: 2px solid #acdbf5;
  width: 40px;
  height: 40px;
  border-radius: 40px;
  float: left;
}

.conversation .header span {
  display: inline-block;
}

.collapsable {
  background-color: #fff;
  border: 2px solid #acdbf5;
  padding: 1em 0em 0em;
  line-height: 1.2em;
  font-family: sans-serif;
  border-radius: 20px 0;
}

.collapsable form {
  margin: 0;
  padding: 1em;
}
.collapsable input[type=text] {
  box-sizing: border-box;
  width: 100%;
  border: none;
}

.message-text {
  display: block;
  padding: 0.5em 0.6em 0em;
}

.metadata {
  display: block;
  color: #cccccc;
  font-size: 0.70em;
  padding: 0.2em 0.6em;
  visibility: hidden;
}
.bubble:hover .metadata {
  visibility: visible;
}

.bubble {
  display: inline-block;
  background-color: #fafafa;
  color: #333333;
  border: 2px solid #7fd0ed;
  position: relative;
  border-radius: 8px;
}

.sending .bubble {
  opacity: 0.7;
}

.incoming .bubble {
  background-color: #ffffff;
  float: left;
}
.incoming .bubble:after, .incoming .bubble:before {
  content: '';
  display: block;
  position: absolute;
  width: 0;
  height: 0;
  top: 11px;
  left: -0.7em;
  border-right: solid 0.5em #ffffff;
  border-top: solid 7px transparent;
  border-left: solid 0.4em transparent;
  border-bottom: solid 7px transparent;
}

.outgoing .bubble {
  float: right;
  background-color: #f5feff;
}
.outgoing .bubble:after, .outgoing .bubble:before {
  content: '';
  display: block;
  position: absolute;
  width: 0;
  height: 0;
  top: 11px;
  right: -0.7em;
  border-top: solid 7px transparent;
  border-right: solid 0.4em transparent;
  border-bottom: solid 7px transparent;
}

.outgoing .bubble:after {
  border-left: solid 0.5em #f5feff;
}
.outgoing .bubble:before {
  border-left: solid 0.5em #7fd0ed;
  right: -0.9em;
}

.incoming .bubble:before {
  border-right: solid 0.5em #7fd0ed;
  left: -0.9em;
}

.outgoing .bubble, .outgoing .metadata {
  text-align: right;
}

.message {
  padding: 0.3em 11.63636px;
}

.message:after {
  content: '';
  display: block;
  height: 0;
  clear: both;
}