reactstrap dropdown
<Dropdown isOpen={this.state.dropdownOpen} toggle={this.toggle}>
<DropdownToggle caret>
Dropdown's menu is right-aligned
</DropdownToggle>
<DropdownMenu right>
<DropdownItem header>Header</DropdownItem>
<DropdownItem disabled>Action</DropdownItem>
<DropdownItem>Another Action</DropdownItem>
<DropdownItem divider/>
<DropdownItem>Another Really Really Long Action (Really!)</DropdownItem>
</DropdownMenu>
</Dropdown>