title: How to override Bootstrap CSS Style to Customise using CSS
body: <p>I have this navbar in all of bootstrap:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>.navbar {
    background-color: aqua;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;!DOCTYPE html&gt;
  &lt;html lang="en"&gt;
  
  &lt;head&gt;
    &lt;title&gt;Bootstrap Example&lt;/title&gt;
    &lt;meta charset="utf-8"&gt;
    &lt;meta name="viewport" content="width=device-width, initial-scale=1"&gt;
  
    &lt;link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css"&gt;
    &lt;link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.0/css/all.css"&gt;
    &lt;link rel="stylesheet" href="bootstrap.min.css"&gt;
    &lt;link rel="stylesheet" href="boot.css"&gt;
    &lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"&gt;&lt;/script&gt;
    &lt;script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"&gt;&lt;/script&gt;
    &lt;script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"&gt;&lt;/script&gt;
    &lt;script src="boot.js"&gt;&lt;/script&gt;
  &lt;/head&gt;
  
  &lt;body&gt;
    &lt;div class="container-fluid"&gt;
      &lt;nav class="navbar navbar-expand-md bg-dark navbar-dark"&gt;
        &lt;a class="navbar-brand" href="#"&gt;Navbar&lt;/a&gt;
        &lt;button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsibleNavbar"&gt;
                &lt;span class="navbar-toggler-icon"&gt;&lt;/span&gt;
              &lt;/button&gt;
        &lt;div class="collapse navbar-collapse" id="collapsibleNavbar"&gt;
          &lt;ul class="navbar-nav"&gt;
            &lt;li class="nav-item active"&gt;
              &lt;a class="nav-link" href="#"&gt;Subjects&lt;/a&gt;
            &lt;/li&gt;
            &lt;li class="nav-item"&gt;
              &lt;a class="nav-link" href="#"&gt;About&lt;/a&gt;
            &lt;/li&gt;
            &lt;li class="nav-item"&gt;
              &lt;a class="nav-link" href="#"&gt;Contact&lt;/a&gt;
            &lt;/li&gt;
          &lt;/ul&gt;
        &lt;/div&gt;
      &lt;/nav&gt;
    &lt;/div&gt;
  &lt;/body&gt;
  
  &lt;/html&gt;</code></pre>
  </div>
  </div>
  
  My problem is when i have the code in my boot.css file:</p>
  
  <p>The background of the navbar is still the dark colour that was implemented in the nav tag. How can I override bootstrap css styling and customise my own.</p>