<header class="bg-dark">
  <div class="container">
    <nav class="navbar navbar-expand-md">
      <a class="navbar-brand" href="https://www.froala.com">
        <img src="./imgs/logo.png" height="30" alt="image">
      </a>

      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav9" aria-controls="navbarNav9" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
      </button>

      <div class="collapse navbar-coll