Add a CSS class to a different element when hovering

I have the following HTML structure:

<div class="container">
  <div class="list-wrapper">
    <ul>
      <li class="item-first">
      </li>
    </ul>
  </div>
  <div class="description-wrapper">
    <div class="description-first"></div>
  </div>
</div>

Is it possible to adjust the .description-first opacity to 1 when hovering over .item-first? Or is this only achievable through JS? Thank you for your assistance!

Answer №1

In the words of Strebler, achieving this effect requires the use of Javascript.

function ShowDescription(value) {
  document.getElementsByClassName("description-first")[0].setAttribute("style", "opacity: " + value + ";");
}
.description-first {
  opacity:0;
}
<div class="container">
  <div class="list-wrapper">
    <ul>
      <li onmouseover="ShowDescription('1');" onmouseout="ShowDescription('0');" class="item-first">Hover here
      </li>
    </ul>
  </div>
  <div class="description-wrapper">
    <div class="description-first">to display this content</div>
  </div>
</div>

Answer №2

Unfortunately, achieving this effect in CSS is not feasible. The closest approach would be to utilize the .list-wrapper selector on hover as shown below:

.list-wrapper:hover + .description-wrapper > .description-first {
  opacity: 1;
}

However, it seems like this may not be the solution you are looking for. :)

Answer №3

Here is the solution I came up with to dynamically add a class based on the index:

jQuery("li").hover(function () {
    jQuery(".description-wrapper").children().eq(jQuery(this).index()).toggleClass("description-visible");
});
.description-wrapper div {
  opacity: 0;
}

.description-visible {
  opacity: 1 !important;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="container">
  <div class="list-wrapper">
    <ul>
      <li class="item-first">First</li>
      <li class="item-second">Second</li>
      <li class="item-third">Third</li>
    </ul>
  </div>
  <div class="description-wrapper">
    <div class="description-first">First</div>
    <div class="description-second">Second</div>
    <div class="description-third">Third</div>
  </div>
</div>

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