Why is My Z-Index Not Working When Using Transform?

Z-Index Not Functioning

Problem:

You are trying to move a ring behind a circle using z-index, but despite specifying a negative value for the z-index, the ring remains in front.

Explanation:

In this particular case, you have applied transform to the pseudo-element for the ring. When transform is applied, the z-index property no longer has an effect.

Solution:

To fix this issue, you need to remove the transform property and replace it with an alternative method for positioning the ring behind the circle.

Code Snippet:

Remove the transform property and specify the absolute position for the ring using top and left properties:

<code class="css">#background #mainplanet:after {
  z-index: -3;
  top: calc(50% - var(--size)/2) !important;
  left: calc(50% - (var(--size) * 1.5)/2) !important;
}</code>

This will ensure that the ring is positioned behind the circle and the z-index is effective.

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