Answers for "building responsive navbar"

responsive flexbox navbar

<nav>
      <ul class="menu">
        <li class="logo"><a href="#">Grid Header</a></li>
        <li class="item"><a href="#">Venstre</a></li>
        </li>
        <li class="toggle"><a href="#"><i class="fa fa-bars" id="bars"></i></a></li>
      </ul>
    </nav>

responsive flexbox navbar

/*
*               *
* Menu / Header *
* Menu / Header *
* Menu / Header *
* Menu / Header *
*               *
*/

nav {
  background: #222;
  padding: 5px 20px;
}
ul {
  list-style-type: none;
}
a {
  color: white;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
.logo a:hover {
  text-decoration: none;
}
.menu li {
  font-size: 16px;
  padding: 15px 5px;
  white-space: nowrap;
}
.logo a,
.toggle a {
  font-size: 20px;
}
.button.secondary {
  border-bottom: 1px #444 solid;
}
/* Mobile menu */
.menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
}
.toggle {
  order: 1;
}
.item.button {
  order: 2;
}
.item {
  width: 100%;
  text-align: center;
  order: 3;
  display: none;
}
.item.active {
  display: block;
  background-color: rgb(192, 79, 79);
  border-radius: 4px;
}
/* Tablet menu */
@media all and (min-width: 600px) {
  .menu {
    justify-content: center;
  }
  .logo {
    flex: 1;
  }
  .toggle {
    flex: 1;
    text-align: right;
  }
  .item.button {
    width: auto;
    order: 1;
    display: block;
  }
  .toggle {
    order: 2;
  }
  .button.secondary {
    border: 0;
  }
  .button a {
    padding: 7.5px 15px;
    background: teal;
    border: 1px #006d6d solid;
  }
  .button.secondary a {
    background: transparent;
  }
  .button a:hover {
    text-decoration: none;
  }
  .button:not(.secondary) a:hover {
    background: #006d6d;
    border-color: #005959;
  }
  .button.secondary a:hover {
    color: #ddd;
  }
}


/* Desktop menu */
@media all and (min-width: 900px) {
  .item {
    display: block;
    width: auto;
  }
  .toggle {
    display: none;
  }
  .logo {
    order: 0;
  }
  .item {
    order: 1;
  }
  .button {
    order: 2;
  }
  .menu li {
    padding: 15px 10px;
  }
  .menu li.button {
    padding-right: 0;
  }
}

/*
*               *
! Menu / Header SLUT *
! Menu / Header SLUT *
! Menu / Header SLUT *
! Menu / Header SLUT *
*               *
*/

reactboostrap navbar responsive

import React from 'react'
import {
    BrowserRouter as Router,
    Switch,
    Route,
    useParams,
  } from "react-router-dom";
  import { Navbar,Nav,NavDropdown,Form,FormControl,Button } from 'react-bootstrap'
  import Home from './Home';
  import AboutUs from './AboutUs';
  import ContactUs from './ContactUs';

class BootstrapNavbar extends React.Component{

    render(){
        return(
            <div>
                <div className="row">
                    <div className="col-md-12">
                        <Router>
                            <Navbar bg="dark" variant="dark" expand="lg" sticky="top">
                                <Navbar.Brand href="#home">React Bootstrap Navbar</Navbar.Brand>
                                <Navbar.Toggle aria-controls="basic-navbar-nav" />
                                <Navbar.Collapse id="basic-navbar-nav">
                                    <Nav className="mr-auto">
                                    <Nav.Link href="/">Home</Nav.Link>
                                    <Nav.Link href="/about-us">Contact Us</Nav.Link>
                                    <Nav.Link href="/contact-us">About Us</Nav.Link>
                                    <NavDropdown title="Dropdown" id="basic-nav-dropdown">
                                        <NavDropdown.Item href="#action/3.1">Action</NavDropdown.Item>
                                        <NavDropdown.Item href="#action/3.2">Another action</NavDropdown.Item>
                                        <NavDropdown.Item href="#action/3.3">Something</NavDropdown.Item>
                                        <NavDropdown.Divider />
                                        <NavDropdown.Item href="#action/3.4">Separated link</NavDropdown.Item>
                                    </NavDropdown>
                                    </Nav>
                                    <Form inline>
                                    <FormControl type="text" placeholder="Search" className="mr-sm-2" />
                                    <Button variant="outline-success">Search</Button>
                                    </Form>
                                </Navbar.Collapse>
                            </Navbar>
                            <br />
                            <Switch>
                                <Route exact path="/">
                                    <Home />
                                </Route>
                                <Route path="/about-us">
                                    <AboutUs />
                                </Route>
                                <Route path="/contact-us">
                                    <ContactUs />
                                </Route>
                            </Switch>
                        </Router>
                    </div>
                </div>
            </div>
        )  
    }
}

export default BootstrapNavbar;