How to Highlight Active Menu Items While Dimming Inactive Ones with CSS?

CSS Solution

To achieve this effect, we utilize CSS to dynamically adjust the opacity of the menu items:

ul:hover li {
  opacity: 0.5;
}
ul li:hover {
  opacity: 1;
}

Explanation:

• The first rule (ul:hover li) applies an opacity of 0.5 to all
• elements when their parent
  is hovered. This dims the menu items that are not currently being hovered over.
  • The second rule (ul li:hover) resets the opacity to 1 for the
  • element that is actually being hovered over. This ensures that the current menu item remains at full visibility.

  Example

  Consider the following HTML and CSS code:

  <ul>
    <li>Item 1</li>
    <li>Item 2</li>
    <li>Item 3</li>
  </ul>
  
  <style>
    li {
      float: left;
      width: 33.33%;
      line-height: 50px;
      background: gray;
      list-style-type: none;
    }
    ul:hover li {
      opacity: 0.5;
    }
    ul li:hover {
      opacity: 1;
    }
  </style>

  Copy after login

  When you hover over the

  element, all
  • elements except the one you're hovering over will become 50% transparent, while the hovered
  • element will remain at full opacity. This creates a subtle highlight effect, guiding users to the active menu item.

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