style.css

body {
  background-color: rgb(24, 24, 24);
  color: rgb(204, 204, 204);
  font-size: 14px;
  font-family: "Roboto", arial, sans-serif;
}

#container {
  position: absolute;
  top: 0px;
  bottom: 0px;
  right: 0px;
  font-family: "Roboto", arial, sans-serif;
  width: 300px;
}

.title {
  -webkit-user-select: none;
  cursor: pointer;
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 100;
  border: 2px solid rgba(51, 51, 51, 0);
  border-radius: 2px;
}

.title .app-name {
  color: rgb(102, 102, 102);
  padding: 5px;
  padding-right: 35px;
}


.title .logo {
  background-color: rgb(51, 51, 51);
  position: absolute;

  border-top-right-radius:2px;
  border-bottom-right-radius:2px;
  top: 0;
  right: 0;
  bottom: 0;
}

.title .logo svg {
  margin-top: -2px;
}

.title:hover {
  border: 2px solid rgb(15, 175, 88);
}

.title:hover .logo {
  background-color: rgb(15, 175, 88);
  border-top-right-radius:0px;
  border-bottom-right-radius:0px;
}

.title:hover .app-name {
  color: rgb(204, 204, 204);
}

.language-selector {
  position: absolute;
  top: 64px;
  left: 18px;
  list-style-type: none;
  z-index: 100;
}

.language-selector li {
  -webkit-user-select: none;
  display: inline-block;
  color: rgb(179, 179 ,179);
  background-color: rgb(51, 51, 51);
  margin: 0;
  padding: 9px;
  cursor: pointer;
}

.language-selector li:first-child {
  border-top-left-radius:2px;
  border-bottom-left-radius:2px;
  padding-left: 13px;
}
.language-selector li:last-child {
  border-top-right-radius:2px;
  border-bottom-right-radius:2px;
  padding-right: 13px;
}

.language-selector li.is-selected, .language-selector li:hover {
  background-color: rgb(15, 175, 88);
  color: white;
}

.chat-window {
  position: absolute;
  overflow-y: auto;
  padding-bottom: 9px;
  padding-left: 18px;
  padding-top: 36px;
  top: 72px;
  right: 18px;
  left: 9px;
  bottom: 0;
  z-index: 0;
}

.chat-element {
  padding: 9px 0px;
}

.chat-element.is-loading .chat-message{
  color: rgb(128, 128, 128);
}

.chat-sender {
  text-transform: uppercase;
  font-size: 0.61em;
  letter-spacing: 0.2em;
  color: rgb(128, 128 ,128);
  font-weight: 700;
}