CSS Z-Index

Control which element appears on top.

David Miller

Dec 10, 2025

15.2k701

Z-index controls layer order.

## Example
```css
.modal {
  position: absolute;
  z-index: 10;
}
```

## UI Preview
Modal appears above page.

## Real world example
Popups and dropdown menus.

#CSS#Beginner

CSS Z-Index

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