Z-Index

Utilities for controlling the stack order of an element.

Default class reference

Usage

Control the stack order (or three-dimensional positioning) of an element in Tailwind, regardless of order it has been displayed, using the z-{index} utilities.

1. <div class="z-40 ...">5</div>
2. <div class="z-30 ...">4</div>
3. <div class="z-20 ...">3</div>
4. <div class="z-10 ...">2</div>
5. <div class="z-0 ...">1</div>

Responsive

To control the z-index of an element at a specific breakpoint, add a {screen}: prefix to any existing z-index utility. For example, use md:z-50 to apply the z-50 utility at only medium screen sizes and above.

1. <div class="z-0 md:z-50 ...">
2. <!-- ... -->
3. </div>

For more information about Tailwind’s responsive design features, check out the Responsive Design documentation.

Customizing

Z-Index scale

By default, Tailwind provides six numeric z-index utilities and an auto utility. You change, add, or remove these by editing the theme.zIndex section of your Tailwind config.

1. // tailwind.config.js
2. module.exports = {
3. theme: {
4. zIndex: {
5. '0': 0,
6. -       '10': 10,
7. -       '20': 20,
8. -       '30': 30,
9. -       '40': 40,
10. -       '50': 50,
11. +       '25': 25,
12. +       '50': 50,
13. +       '75': 75,
14. +       '100': 100,
15. 'auto': 'auto',
16. }
17. }
18. }

Negative values

If you’d like to add any negative z-index classes that take the same form as Tailwind’s negative margin classes, prefix the keys in your config file with a dash:

1. // tailwind.config.js
2. module.exports = {
3. theme: {
4. extend: {
5. zIndex: {
6. +         '-10': '-10',
7. }
8. }
9. }
10. }

Tailwind is smart enough to generate classes like -z-10 when it sees the leading dash, not z--10 like you might expect.

Variants

By default, only responsive, focus-within and focus variants are generated for z-index utilities.

You can control which variants are generated for the z-index utilities by modifying the zIndex property in the variants section of your tailwind.config.js file.

For example, this config will also generate hover and active variants:

1. // tailwind.config.js
2. module.exports = {
3. variants: {
4. extend: {
5. // ...
6. +       zIndex: ['hover', 'active'],
7. }
8. }
9. }

Disabling

If you don’t plan to use the z-index utilities in your project, you can disable them entirely by setting the zIndex property to false in the corePlugins section of your config file:

1. // tailwind.config.js
2. module.exports = {
3. corePlugins: {
4. // ...
5. +     zIndex: false,
6. }
7. }

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