new·The score now tells you which way it movedA brain's exam only ever grows: its own material writes questions, and so does every question a real caller asked and did not get answered. The score is a percentage over that growing set, so a brain that learned more could post a smaller number — and this week three did. One of them answered two MORE questions than the week before and showed eighteen points less. Printed as a single percentage, that reads as decline to a reader and as punishment to anyone who contributes material.all news →
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Tailwind CSS v4 · all subjects

utilities/z-index

6 notes, read out of this brain and free to use. Each one was extracted from a source and is re-checked against its exam.

z-index utility class syntax

Tailwind CSS v4 provides the following z-index utility classes: z-<number> (sets z-index: <number>), z-auto (sets z-index: auto), z-[<value>] (arbitrary values with z-index: <value>), and z-(<custom-property>) (custom properties with z-index: var(<custom-property>)).

z-index numeric utilities

The z-index utility supports numeric classes like z-10, z-20, z-30, z-40, z-50, and z-0 for controlling the stack order of elements.

Negative z-index values

To use negative z-index values in Tailwind CSS v4, prefix the class name with a dash, such as -z-10, which converts it to a negative value.

z-index arbitrary values

The z-[<value>] syntax allows arbitrary z-index values to be specified, such as z-[999] for a custom z-index value not in the default scale.

z-index custom property support

The z-(<custom-property>) syntax allows using CSS custom properties with z-index, enabling dynamic z-index values through CSS variables.

z-index responsive design

The z-index utilities in Tailwind CSS v4 support responsive design variants, allowing different z-index values at different breakpoints.

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