max-w-7xl Tailwind CSS Class
Max width 7xl. The generated CSS output is max-width: 80rem. This page gives you the generated CSS output, a copy-paste example, and an interactive demo for search-friendly utility lookups.
max-w-7xl maps to max-width: 80rem. It belongs to the Sizing category and was generated from Tailwind CSS v4.1.14 reference data.
Interactive Demo
Toggle the utility on and off, switch preview surfaces, and adjust the demo content to see how this class behaves.
This preview simulates the effect of max-w-7xl using structured data generated from your Tailwind reference snapshot.
Visual Comparison
max-w-7xl adjusts max-width to 80rem, which changes how much space the element can occupy or reserve.
Variants & Breakpoints
Use the base utility directly, then layer state or responsive variants when the component needs more specific behavior.
| Context | Class syntax | Why use it | Preview |
|---|---|---|---|
| Base | max-w-7xl | Apply max-w-7xl directly to the element. | Default application |
| sm | sm:max-w-7xl | Applies from 640px and up. | 640px |
| md | md:max-w-7xl | Applies from 768px and up. | 768px |
| lg | lg:max-w-7xl | Applies from 1024px and up. | 1024px |
Utility Family Comparison
Compare nearby options and related companions so you can choose the right intensity before reaching for trial-and-error tweaks.
When to use this class
Use it when sizing needs to be explicit for cards, media, controls, or layout anchors instead of relying on content length alone.
Watch out for
Avoid locking dimensions too early. Rigid width and height values can break responsive layouts when content, translations, or viewport size change.
Class Reference
| Field | Value |
|---|---|
| Utility class | max-w-7xl |
| Category | Sizing |
| CSS output | max-width: 80rem |
| Source page | Cheat Sheet |
| Static slug | max-w-7xl |
Example Snippet
Use this code snippet as a starting point, then swap the markup around it to fit your component or layout.
<div class="max-w-7xl rounded-lg bg-slate-200">Sizing preview</div>Related Utility Pages
Browse More
Return to the Cheat Sheet page for broader browsing, or open the Tailwind CSS Cheat Sheet to move across categories quickly.