예시) Dropdown을 쓰고 싶다.

//import
import Dropdown from "react-bootstrap/Dropdown";

//가져올 것
<Dropdown>
   <Dropdown.Toggle variant="success" id="dropdown-basic">
    Dropdown Button
</Dropdown.Toggle>

<Dropdown.Menu>
    <Dropdown.Item href="#/action-1">Action</Dropdown.Item>
    <Dropdown.Item href="#/action-2">Another action</Dropdown.Item>
    <Dropdown.Item href="#/action-3">Something else</Dropdown.Item>
    </Dropdown.Menu>
</Dropdown>