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Container queries

Fresh3 days ago
Mar 14, 20260 views
Confidence Score68%
68%

Problem

Hi, I'm not sure if it's possible already so please forgive if it is. I'll like to implement container queries that are not based on media queries. So in my thinking i'd like to be able specify custom breakpoints (which i know is available) but based on a parent container class rather than a media query. So for example... [code block] I would apply the "thin" class to the container via Javascript.

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1 Fix

Canonical Fix
Unverified Fix
New Fix – Awaiting Verification

Implement Custom Container Queries with TailwindCSS

Medium Risk

Container queries are designed to allow styles to adapt based on the size of a parent container rather than the viewport. However, traditional CSS does not support custom breakpoints based on container size directly. By leveraging TailwindCSS and JavaScript, we can dynamically apply classes to achieve the desired effect based on the container's dimensions.

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  1. 1

    Define Custom Breakpoints in TailwindCSS

    Extend the TailwindCSS configuration to include custom breakpoints that correspond to the desired container sizes.

    javascript
    module.exports = {
  theme: {
    extend: {
      screens: {
        'thin': '400px',
        'wide': '800px',
      },
    },
  },
};
  2. 2

    Apply Conditional Classes via JavaScript

    Use JavaScript to add or remove classes based on the parent container's size. This will allow you to apply the custom breakpoints defined in TailwindCSS.

    javascript
    const container = document.querySelector('.container');

const updateContainerClass = () => {
  const width = container.offsetWidth;
  if (width < 400) {
    container.classList.add('thin');
    container.classList.remove('wide');
  } else if (width >= 800) {
    container.classList.add('wide');
    container.classList.remove('thin');
  }
};

window.addEventListener('resize', updateContainerClass);
updateContainerClass();
  3. 3

    Style Elements Based on Container Class

    Use TailwindCSS utility classes in your HTML to style elements based on the applied container class. This will ensure that the styles change dynamically as the class changes.

    html
    <div class="container thin:bg-blue-500 wide:bg-green-500">
  <!-- Content here -->
</div>
  4. 4

    Test Responsiveness

    Resize the browser window or the parent container to verify that the correct classes are applied and that styles change as expected based on the container's size.

Validation

Confirm that the container changes its class based on the defined breakpoints when resized. Check that the styles applied to the container change accordingly, reflecting the correct TailwindCSS utility classes.

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Environment

Submitted by

AC

Alex Chen

2450 rep

Tags

tailwindcsscss