Tailwindcss: Syntax error: The `hover:rounded-xl` class does not exist - css

Syntax error: The hover:rounded-xl class does not exist, but hover:rotate-12 does. If you're sure that hover:rounded-xl exists, make sure that any #import statements are being properly processed before Tailwind CSS sees your CSS, as #apply can only be used for classes in the same CSS

For this, to work you need to enable JIT mode in your tailwind.config.js file
// tailwind.config.js
module.exports = {
...,
mode: "jit",
...
};

Related

Using tailwind purge option to remove unused css, but all styles are getting removed

Using tailwind purge option to remove unused css, but all styles are getting removed.
Reference: https://v2.tailwindcss.com/docs/optimizing-for-production#basic-usage
My tailwind.config.js file looks like below
module.exports = {
purge: ['./src/page/**/*.js', './src/layouts/**/*.js', './components/**/*.js'],
darkMode: false,
theme: {}
}

React Build Tailwind Not Including all classes

So I'm making an App with React 17, tailwind and craco and its works find in dev but when i build with craco, tailwind don't include classes as h-36, h-44, col-span-1...
That's my tailwind.config.js
module.exports = {
purge: ['./src/**/*.{js,jsx,ts,tsx}', './public/index.html'],
darkMode: false, // or 'media' or 'class'
theme: {
extend: {},
},
variants: {
extend: {},
},
plugins: [],
}
There are some things that you should check:
Make sure that you put the tailwind classes in className attribute instead of class attribute
Do not use string concatenation to create class names. So, instead of writing <div class="text-{{ error ? 'red' : 'green' }}-600"></div>, write <div class="{{ error ? 'text-red-600' : 'text-green-600' }}"></div>
Make sure that all your files are included in the purge command. Since you only specify './src/**/*.{js,jsx,ts,tsx}', this meant that tailwind will only scan what class should not be purged on those files with those extensions. This means that if you use tailwind classes in html files, tailwind will not scan those files. Also the same case if you somehow have files outside of ./src.
For me, I had to ensure that I was including all of the file types in my purge array within tailwind.config.js. Hope this helps someone - mine was missing the .vue files.
My Laravel tailwind purge array now looks like:
purge: [
'./vendor/laravel/framework/src/Illuminate/Pagination/resources/views/*.blade.php',
'./vendor/laravel/jetstream/**/*.blade.php',
'./storage/framework/views/*.php',
'./resources/views/**/*.blade.php',
'./resources/js/**/*.vue',
],

adding dynamic class name in svelte

I am currently writing an app with svelte, sapper and tailwind. So to get tailwind working I have added this to my rollup config
svelte({
compilerOptions: {
dev,
hydratable: true,
},
preprocess: sveltePreprocess({
sourceMap: dev,
postcss: {
plugins: [
require("tailwindcss"),
require("autoprefixer"),
require("postcss-nesting"),
],
},
}),
emitCss: true,
})
All in all this works, but I am getting some issues with dynamic class names.
Writing something like this always seems to work
<div class={true ? 'class-a' : 'class-b'}>
both class-a and class-b will be included in the final emitted CSS and everything works as expected.
But when I try to add a variable class name it won't work. So imagine this:
<div class={`col-span-6`}>
It will work exactly as expected and it will get the proper styling from the css class col-span-6 in tailwind.
But if I change it to this:
<div class={`col-span-${6}`}>
Then the style won't be included.
If I on the other hand already have a DOM element with the class col-span-6 then the styling will be added to both elements.
So my guess here is that the compiler sees that the css is not used and it gets removed.
And I suppose that my question is then if there is any way to force in all the styling from tailwind? so that I can use more dynamic class names
and not sure if it is relevant but the component I have been testing this on, have this style block
<style>
#tailwind base;
#tailwind components;
#tailwind utilities;
</style>
edit: can add that I am getting a bunch of prints in the log saying that there are unused css selectors that seems to match all tailwind classes
I think it was purgeCSS (built-in in tailwind 2.0) that did not recognize the dynamic classes.
It is difficult to solve this problem for every tailwind classes, but if you don't have a lot of these you can manually safe list those classnames:
// tailwind.config.js
module.exports = {
purge: {
content: ['./src/**/*.html'],
// These options are passed through directly to PurgeCSS
options: {
// Generate col-span-1 -> 12
safelist: [...Array.from({ length: 12. }).fill('').map((_, i) => `col-span-${i + 1}`],
},
},
// ...
}
I think that when the class attribute is a variable or depends on a variable it will not used to extract style during compilation (class-${6} is not evaluated during compilation but during runtime), because svelte marks it as unused css selector because the value of that class attribute is not known when the code is compiled.
To force svelte to include your style you must mark it as global, and to do that we have two options:
<script>
// component logic goes here
</script>
div class={`class-${6}`}/>
option 1:
<style>
:global(.class-6){
// style goes here
}
</style>
option 2: this will mark all your style as global
<style global>
.class-6{
// style goes here
}
</style>
I encounter the same problem, <div class="pl-{indent*4}"> do not work in svelte.
My solution is to use inline style,
<div style="padding-left:{indent}rem">,
which is inferred from pl-1=padding-left: 0.25rem; /* 4px */.
I think it's convenient for simple class.

Tailwind class doesn't take effect

I created a react setup for a little project and decided to add tailwind. It was successful but when I add the class to the components, I don't see any change.
This is the link to the repository
Everything seems fine. Once delete the node modules and package.lock.json file and install node modules then start the server.
Also, there is no need to import tailwind.css in App.js.
Just main.css is enough as we are already appending all the styles to main.css (check scripts in package.json)
I found the problem. It was from my webpack config for CSS loader. I noticed when I added my own stylesheet, not all the rules were applied.
{
loader: "css-loader",
options: {
modules: true,
importLoaders: 1,
sourceMap: true
}
}
I had to remove all the options. I don't even know why I added it at first. Tailwind CSS now works.
If you know that you've configured Tailwind and added the right settings and presets, maybe you need to add this:
module.exports = {
content: [
'./public/index.html', <-
],
}
or this, if you're using ReactJS:
module.exports = {
content: [
'./pages/**/*.{html,js}',
'./components/**/*.{html,js}'
],
// ...
}
Within your tailwind.config.js file.
You also can learn/read more about it on: https://tailwindcss.com/docs/content-configuration, that worked perfectly for me!

Warning: Built-in CSS support is being disabled due to custom CSS configuration being detected

I am trying to import "../../node_modules/react-quill/dist/quill.snow.css"; in my next.js project but I get following error
[ error ] ./node_modules/react-quill/dist/quill.snow.css
Global CSS cannot be imported from files other than your Custom <App>. Please move all global CSS imports to pages/_app.js.
Read more: https://err.sh/next.js/css-global
Location: components\crud\BlogCreate.js
I managed to make it work with next.config.js. It worked with this configuration
// next.config.js
const withCSS = require('#zeit/next-css');
module.exports = withCSS({
cssLoaderOptions: {
url: false
}
});
But now I am getting a warning,
Warning: Built-in CSS support is being disabled due to custom CSS configuration being detected.
See here for more info: https://err.sh/next.js/built-in-css-disabled
It seems my solution is not the best way to solve this problem. How could I get rid of this warning?
You may remove the #zeit/next-css plugin because the Next.js 9.3 is very simple. Then Next.js 9.3 is Built-in Sass Support for Global Stylesheets after removing the #zeit/next-css you may install
npm install sass
Then, import the Sass file within pages/_app.js.
Global CSS
Import any global CSS in the /pages/_app.js.
import '../styles.css'
// This default export is required in a new `pages/_app.js` file.
export default function MyApp({ Component, pageProps }) {
return <Component {...pageProps} />
}
Importing CSS in components or pages won't work with the built-in CSS support.
Component CSS
Next.js supports CSS Modules using the [name].module.css file naming convention.
components/Button.module.css
/*
You do not need to worry about .error {} colliding with any other `.css` or
`.module.css` files!
*/
.error {
color: white;
background-color: red;
}
components/Button.js
import styles from './Button.module.css'
export function Button() {
return (
<button
type="button"
// Note how the "error" class is accessed as a property on the imported
// `styles` object.
className={styles.error}
>
Destroy
</button>
)
}
CSS Module files can be imported anywhere in your application.
Third-party CSS on Component / Page level
You can use <link> tag in the component.
const Foo = () => (
<div>
<link
href="third.party.css"
rel="stylesheet"
/>
</div>
);
export default Foo;
The loaded stylesheet won't be automatically minified as it doesn't go through build process, so use the minified version.
If none of the options doesn't fit your requirements consider using a custom CSS loader like #zeit/next-css.
In that case you will see a warning which is fine:
Warning: Built-in CSS support is being disabled due to custom CSS configuration being detected.
See here for more info: https://err.sh/next.js/built-in-css-disabled
Suggested reading:
Next.js Built-In CSS Support
Global SASS
CSS Modules
Install sass module by running following command.
npm install sass
You then need to remove all css-loader and sass-loader configuration from next.config.js.
For example, I had to remove the withSass() function (in your case withCSS()) and just return the configuration object.
Had to remove the following lines from next.config.js
{
test: /\.scss$/,
use: {
loader: "sass-loader",
options: {
data: '#import "./scss/_variables.scss"',
sourceMap: true,
},
},
}
Move your options to sassOptions in next config file.
sassOptions: {
data: '#import "./scss/_variables.scss"',
sourceMap: true,
}
Also remove the old #zeit/next-sass and #zeit/next-css from package.json
I had to remove following #zeit dependency from my package.json
"dependencies": {
"#zeit/next-sass": "1.0.1",
This worked for me.
For more details, visit https://nextjs.org/docs/basic-features/built-in-css-support

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