.mainArea {
  width: 800px;
  min-width: 800px;
  flex-grow: 1;
  overflow: hidden;
  position: relative;
  border: 1px solid #d9d9d9;
  background: #191919;
  box-shadow: 0 4px 16px 0 rgba(0, 0, 0, 0.12);
  border-radius: 2px;
  margin: 8px 0px;
  height: 100%;
}