jss-plugin-all-important

In certain (horrible) situations you may want all of your CSS values to be !important. You may be making a embeddable widget, writing a component that may be used in uncontrolled environments, or generally fighting against an environment that you have no control over.

The idea for this plugin came from this issue: cssinjs/jss#209.

It was originally made by myself for The Event Discovery Company's Evitt project, which included a pretty sweet embedable calendar widget. Since that project is being discontinued, I was given permission to publish and maintain the JSS libraries I wrote: this and jss-plugin-rem-em-to-px.

Install

npm install --save jss-plugin-all-important

Usage

import { create } from 'jss';
import jssImportant from 'jss-plugin-all-important';

const jss = create({
    plugins: [
        jssImportant(),
    ]
});

Practical usage

This plugin works really well with jss-isolate, jss-increase-specificity, and jss-plugin-rem-em-to-px to protect your styles.

Here's how I used them in conjunction with Material UI's default settings:

import { create } from 'jss';
import { jssPreset } from '@material-ui/core/styles';
import jssIsolate from 'jss-isolate';
import jssRemEmToPx from 'jss-plugin-rem-em-to-px';
import jssImportant from 'jss-plugin-all-important';
import jssIncreaseSpecificity from 'jss-increase-specificity';

const jss = create({
    plugins: [
        jssIsolate({
            reset: 'inherited', //Just reset inheritable values - makes no sense to reset anything else I think
            isolate: 'widgetRoot' // Reset from the widgetRoot class - not 'root' because that's used throughout MUI - see https://github.com/cssinjs/jss/issues/326
        }),
        ...jssPreset().plugins,
        jssRemEmToPx({baseFontSize: 16}),
        jssImportant(),
        jssIncreaseSpecificity(),
    ]
});

API

jssImportant(options)

Options:

• none

License

MIT © Joe Duncko