message: fix(stream-client):fix the stacking issues of trigger-block component of stream-designer component.
diff: }
  }
  -.trigger-icon-background {
  - position: absolute;
  - z-index: 0;
  -}
  -
  .trigger-content {
  - z-index: 1;
  margin-right: 3px;
  border-radius: 2px;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.2);
  