Why Can\'t I Transition a CSS Linear Gradient Directly?

CSS Transition with Linear Gradient

Question

As you attempt to implement a transition on a button using a CSS linear gradient as its background, you may encounter difficulties. Despite your efforts, the transition fails to execute. You inquire about potential errors in your code and seek solutions.

Answer

Regrettably, direct transitions of gradients in CSS are not currently supported.

To overcome this limitation, a practical alternative involves introducing an additional element to render the desired gradient and applying opacity transitions to it:

<code class="css">a.button {
  position: relative;
  z-index: 9;
  /* ... Additional style properties ... */
  background: linear-gradient(top, green, #a5c956);
}

.button-helper {
  position: absolute;
  z-index: -1;
  /* ... Additional style properties ... */
  background: linear-gradient(top, lime, #89af37);
  opacity: 0;
  transition: opacity 1s linear;
}

a.button:hover .button-helper {
  opacity: 1;
}</code>

HTML:

<code class="html"><a href="#" class="button">
  <span class="button-helper"></span>
  button
</a></code>

In this approach, the .button-helper element provides the gradient and smoothly transitions its opacity, achieving the desired effect.

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