When there are more than a few options to choose from, you can wrap them in a `Dropdown`. By hovering or clicking on the trigger, a dropdown menu will appear, which allows you to choose an option and execute the relevant action.
| getPopupContainer | To set the container of the dropdown menu. The default is to create a div element in body, but you can reset it to the scrolling area and make a relative reposition. [Example on CodePen](https://codepen.io/afc163/pen/zEjNOy?editors=0010) | (triggerNode: HTMLElement) => HTMLElement | () => document.body | |
| placement | Placement of popup menu: `bottomLeft`, `bottomCenter`, `bottomRight`, `topLeft`, `topCenter` or `topRight` | string | `bottomLeft` | |
| trigger | The trigger mode which executes the dropdown action. Note that hover can't be used on touchscreens | Array<`click`\|`hover`\|`contextMenu`> | \[`hover`] | |