message: fixed centering of testrow
diff: flex: 0% 1 1;
  }
  -.test-table tr td:last-child {
  - align-self: center;
  -}
  -
  .test-table td {
  font-size: 12px;
  }
  .test-table tr .buttons > * {
  min-height: 24px;
  opacity: 0;
  + height: 100%;
  }
  .test-table tr .buttons button {
  width: 22px;
  height: 22px;
  font-size: 20px;
  + height: 100%;
  + margin: auto 0;
  }
  .test-table tr:hover .buttons > * {
  