CSS Layered Z Index Preview
Create named z-index layers for dropdowns, sticky bars, modals, and toasts.
What the CSS Layered Z Index does
Create named z-index layers for dropdowns, sticky bars, modals, and toasts. A modal at 900 and toast at 1000 makes the notification appear above the overlay when needed Adjust the controls and the preview updates immediately, so you can dial in exactly what you want and copy the result straight into your project — no build step and no account.
One thing to keep in mind: Z-index only compares elements in the same stacking context, so transforms and opacity can change results.
Private and in your browser
Everything runs locally in your browser. Your input is never uploaded, so the tool stays fast and works offline, and the copy and download buttons always use the current result shown in the output panel.
Frequently Asked Questions
What does the CSS Layered Z Index do?
Create named z-index layers for dropdowns, sticky bars, modals, and toasts. A modal at 900 and toast at 1000 makes the notification appear above the overlay when needed.
What should I keep in mind?
Z-index only compares elements in the same stacking context, so transforms and opacity can change results
Does it upload my input?
No. The CSS Layered Z Index runs entirely in your browser — your input is never uploaded, and it keeps working offline once the page has loaded.
Practical utilities for front-end design and implementation work.