tailwindcss-screens-in-dom

Expose the active tailwind screen (like sm, md) in body:before, allowing you to use the value in Javascript. Read more

Installation

$ npm install tailwindcss-screens-in-dom --save-dev

Usage

Add the plugin to the plugins array in your tailwind config.

plugins: [
  // ...
  require('./tailwindcss-screens-in-dom')()
]

Options

You can pass an object to override the default settings.

// Default options

plugins: [
  require('./tailwindcss-screens-in-dom')({
    noScreen: 'xs' // Viewports below the smallest defined screen.
  })
]

Access the active screen in Javascript

Accessing the value in plain Javascript is explained here.

React

A example hook that returns the active screen as a string:

useTailwindScreen.js

import { useState, useEffect } from 'react'

export default () => {
  const isClient = typeof window === 'object'

  function getScreen() {
    return window
      .getComputedStyle(document.querySelector('body'), ':before')
      .getPropertyValue('content')
      .replace(/"|'/g, '')
  }

  const initialState = isClient ? getScreen() : ''
  const [screen, setScreen] = useState(initialState)

  useEffect(() => {
    if (!isClient) {
      return false
    }

    function handleResize() {
      setScreen(getScreen())
    }

    window.addEventListener('resize', handleResize)
    return () => window.removeEventListener('resize', handleResize)
  }, [])

  return screen
}

Component

import React from 'react'
import useTailwindBreakpoint from '../hooks/useTailwindBreakpoint'

const ActiveScreen => {
  const screen = useTailwindBreakpoint()
  
  return (
      <span>{screen}</span>
  )
}

export default ActiveScreen