.header {
  height: 44px;
  line-height: 44px;
  color: #333;
  text-align: center;
  font-size: 18px;
  background: #fff;
}

.tenant {
  position: relative;
}

.tenant:after {
  content: ' ';
  position: absolute;
  width: 0;
  height: 0;
  top: 12px;
  right: -20px;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid #333;
}
