message: Limit Field label to size of input
  This avoids awkward wrapping if the label is longer than the input. This will
  show an ellipsis to suggest there's more text in the label than can be shown.
diff: @@ -89,6 +89,10 @@ limitations under the License.
  margin: 7px 8px;
  padding: 2px;
  pointer-events: none; // Allow clicks to fall through to the input
  + overflow: hidden;
  + white-space: nowrap;
  + text-overflow: ellipsis;
  + max-width: calc(100% - 18px);
  }
  .mx_Field input:focus + label,
  