message: title font change
diff: align-items: center;
  }
  +.header > div:first-child {
  + flex-grow: 1;
  +}
  +
  .header .title {
  display: inline-block;
  border: 1px transparent solid;
  border-radius: 4px;
  font-size: 14px;
  line-height: 17px;
  - padding: 5px 15px;
  - font-weight: 500;
  + padding: 5px;
  + font-weight: bold;
  font-size: 16px;
  cursor: pointer;
  min-width: 150px;
  - flex-grow: 1;
  + margin: 0 5px;
  }
  .header:hover .title {
  