Clear navigation bar alternative

My website features a transparent bootstrap navbar, with the hero header as the second element on the page set at a -50 margin to place it behind the menu, creating the desired effect.

However, I have encountered an issue on certain pages where there is no header image present, leaving me with a transparent navbar that blends into the default white background.

I am seeking advice on how to implement a fallback option for the navbar to have some background if there is no hero image on the page. Ideally, I would like to achieve this using pure CSS and perhaps through clever layering techniques. Any suggestions would be greatly appreciated as I am struggling to find a solution.

htmlcsstwitter-bootstrap

Answer №1

To provide a solution without having access to the HTML code you are using, I have made some assumptions about the structure of your project. One way to achieve what you want is by utilizing pseudo-classes in CSS. These can help you display an image or a colored background behind your navigation bar.

The reason for applying this technique to the container is to ensure that the pseudo-element remains hidden behind a hero image, if present. However, if there is no hero image, the pseudo-element will become visible.

CSS:

.container::before {
  content: '';
  height: 50px;
  width: 100%;
  position: fixed;
  top: 0;
  background-color: rgba(0,0,0,0.2);
}

See the implementation in action below.

.nav {
  height: 50px;
  color: white;
  background: transparent;
  position: fixed;
  top: 0;
  width: 100%;
  z-index:1000;
  display: block;
}

.container::before {
  content: '';
  height: 50px;
  width: 100%;
  position: fixed;
  top: 0;
  background-color: rgba(0,0,0,0.2);
}
<div class="container">
  <div class="nav">Nav Content</nav>
</div>

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