Create a new Processor instance that will apply plugins as CSS processors.

let postcss = require('postcss')

postcss(plugins).process(css, { from, to }).then(result => {
  console.log(result.css)
})

Default function to convert a node tree into a CSS string.

Parses source css and returns a new Root or Document node, which contains the source CSS nodes.

// Simple CSS concatenation with source map support
const root1 = postcss.parse(css1, { from: file1 })
const root2 = postcss.parse(css2, { from: file2 })
root1.append(root2).toResult().css

Rehydrate a JSON AST (from Node#toJSON) back into the AST classes.

const json = root.toJSON()
// save to file, send by network, etc
const root2  = postcss.fromJSON(json)

Contains the list module.

Creates a new Comment node.

Creates a new AtRule node.

Creates a new Declaration node.

Creates a new Rule node.

Creates a new Root node.

Creates a new Document node.