Z-index with before pseudo-element

by

The ::before pseudo-element is placed inside the header element.

CSS Spec:

The :before and :after pseudo-elements interact with other boxes as if they were real elements inserted just inside their associated element.

Setting the z-index for the header element creates a new Stacking Context, so the new pseudo element you created can not float behind the header element, because it would have to go outside that Stacking Context.

I suggest that you simply precede the header element by another element, so it stacks correctly by default. Example.

More Related Contents:

  1. Is it possible to set the stacking order of pseudo-elements below their parent element? [duplicate]
  2. ::before pseudo-element stacking order issue
  3. Why can’t an element with a z-index value cover its child?
  4. z-index not working with fixed positioning
  5. Why isn’t it possible to combine vendor-specific pseudo-elements/classes into one rule set?
  6. IE7 Z-Index Layering Issues
  7. Why do the :before and :after pseudo-elements require a ‘content’ property?
  8. CSS :after not adding content to certain elements
  9. z-index is canceled by setting transform(rotate)
  10. Font Awesome 5 Choosing the correct font-family in pseudo-elements
  11. Why don’t :before and :after pseudo elements work with `img` elements? [duplicate]
  12. What is the difference between a pseudo-class and a pseudo-element in CSS?
  13. Font Awesome 5, why is CSS content not showing?
  14. Is there a way to use SVG as content in a pseudo element ::before or ::after
  15. How to make child element higher z-index than parent? [duplicate]
  16. Add line break to ::after or ::before pseudo-element content
  17. Combine :after with :hover
  18. css z-index issue with nested elements
  19. CSS3 ::selection behaves differently in FF & Chrome
  20. Nesting pseudo-elements inside pseudo-elements
  21. “text-decoration” and the “:after” pseudo-element, revisited
  22. css rotate a pseudo :after or :before content:”” [duplicate]
  23. Bootstrap Modal sitting behind backdrop
  24. Why does stacking order change on webkit filter hover?
  25. Change style of pseudo elements in angular2
  26. Can you apply a width to a :before/:after pseudo-element (content:url(image))?
  27. Purpose of *:before, *:after rule without content property
  28. Apply webkit scrollbar style to specified element
  29. CSS negative z-index: what does it mean?
  30. CSS3 transitions on pseudo-elements (:after, :before) not working?

Leave a Comment