vanilla-cssjs

Size 300b

Install

$ npm install --save vanilla-cssjs

Use BEM css

import {css} from 'vanilla-cssjs';

const box = document.getElementById('box');

css`
  .text {
    color: #555;
  }
`;

box.classList.add('text');

VSCode Plugin

you can install es6-string-css:

https://marketplace.visualstudio.com/items?itemName=bashmish.es6-string-css