Navbar

<nav class="navbar navbar-expand-lg navbar-light">
                                <a class="navbar-brand" href="#">Navbar</a>
                                <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
                                <span class="navbar-toggler-icon"></span>
                                </button>
                                
                                <div class="collapse navbar-collapse" id="navbarSupportedContent">
                                <ul class="navbar-nav mr-auto">
                                <li class="nav-item active">
                                  <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
                                </li>
                                <li class="nav-item">
                                  <a class="nav-link" href="#">Link</a>
                                </li>
                                <li class="nav-item dropdown">
                                  <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                                    Dropdown
                                  </a>
                                  <div class="dropdown-menu" aria-labelledby="navbarDropdown">
                                    <a class="dropdown-item" href="#">Action</a>
                                    <a class="dropdown-item" href="#">Another action</a>
                                    <div class="dropdown-divider"></div>
                                    <a class="dropdown-item" href="#">Something else here</a>
                                  </div>
                                </li>
                                <li class="nav-item">
                                  <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
                                </li>
                                </ul>
                                <form class="form-inline my-2 my-lg-0">
                                <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
                                <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
                                </form>
                                </div>
                                </nav>

  <!-- Just an image -->
                                                        <nav class="navbar navbar-light">
                                                            <a class="navbar-brand" href="#">
                                                                <img src="../assets/images/logo-icon.svg" width="30" height="30"
                                                                    alt="" loading="lazy">
                                                            </a>
                                                        </nav>