Function dropdown 

pub fn dropdown(
    color: Color,
    label: &str,
    items: &[DropdownItem],
) -> Element<Div>

Create a Bootstrap dropdown.

Example

use ironhtml_bootstrap::dropdown::{dropdown, DropdownItem};
use ironhtml_bootstrap::Color;

let items = vec![
    DropdownItem::link("Action", "#"),
    DropdownItem::link("Another action", "#"),
    DropdownItem::divider(),
    DropdownItem::link("Separated link", "#"),
];

let dd = dropdown(Color::Primary, "Dropdown button", &items);
assert!(dd.render().contains("dropdown"));