Why isn't ::before working? What could possibly be causing this issue?

Is there a way to add a background image to a container and ensure it displays properly?

CSS CODE

.headerandmain::before {
    background-image: url(Images/HomeImg2.jpg);
}

HTML CODE

<section class="headerandmain">

    <header>
        <nav>
            <ul class="navlink">
                <li class="navabout">
                    <a href="#">
                        About
                    </a>
                </li>


                <li class="navhome"><a href="#">
                    Home
                </a>

                </li>


                <li class="navdownload">
                    <a href="#">Download</a>
                </li>


                <li class="navcontact">
                    <a href="#">
                            Contact
                        </a>

                </li>

            </ul>
        </nav>
    </header>
</section>

The use of '::before' in CSS is not working, but 'background-image(url)' is functioning correctly.

htmlcss

Answer №1

Include the following attributes.

  • description
  • dimension
  • measurements
  • placement
  • priority level

.headerandmain:before {
  background: url("https://images.pexels.com/photos/132037/pexels-photo-132037.jpeg");
  content: '';
  height: 100%;
  width: 100%;
  position:absolute;
  z-index: -1;
}
<section class="headerandmain">
  <header>
    <nav>
      <ul class="navlink">
        <li class="navabout">
          <a href="#">
            About
          </a>
        </li>
        <li class="navhome"><a href="#">
            Home
          </a>
        </li>
        <li class="navdownload">
          <a href="#">Download</a>
        </li>
        <li class="navcontact">
          <a href="#">
            Contact
          </a>
        </li>
      </ul>
    </nav>
  </header>
</section>

Answer №2

What is the purpose of using ::before?

If you want to apply a background image using ::before, follow these steps.

.headerandmain::before {
   content: '';
   width: xx; // specify desired width
   height: xx; // specify desired height
   position: xx; // specify desired position
   ... // add any additional settings
   background-image: url(Images/HomeImg2.jpg);
}

Which container's background image are you looking to modify?

Please provide further clarification on your question.

Answer №3

To properly display the header and main content, don't forget to include content:'' within the .headerandmain::before section

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