A PostCSS plugin that automagically mark your CSS up with rfs() for RFS, helping you achieve a responsive layout efficiently and consistently.

/* Original Input */
.foo {
    font-size: 4em;
}

/* After the transformation of RFS Autopilot but before RFS*/
.foo {
  font-size: rfs(4em);
}

/* After the transformation of RFS*/
.foo {
  font-size: calc(1.525rem + 3.3vw);
}

@media (min-width: 1200px) {
  .foo {
    font-size: 4rem;
  }
}

RFS is a great unit resizing engine that helps you build responsive CSS layout, but writing rfs() everywhere manually is a pain in the ass.

With this plugin, you just need to declare rules you want to apply rfs() to, and it will do the heavy-lifting for you.

This plugin is made with love by a Hong Konger.

As this plugin is a PostCSS plugin, you need to install and set up PostCSS first before use it. If you haven't used PostCSS before, set it up according to official docs.

Input this command in terminal and download this PostCSS plugin.

npm i postcss-rfs-autopilot

RFS is treated as an external dependency for this plugin, thus you would need to download and include it manually in your PostCSS config as usual.

npm i rfs

After you have installed this plugin, require it before RFS in your PostCSS configuration files, or the place where you config PostCSS in your environment

//postcss.config.js or other files you use to config PostCSS

module.exports = {
  plugins: [
    //Other plugins...
    //You have to include this plugin before rfs
    require('postcss-rfs-autopilot')(),
    require('rfs')()
  ]
}

Now we will mark up all the values for you with rfs()🚀🚀🚀!

If you want to include or exclude some values or selectors, you can pass a configuration object to this plugin like this:

Check out our API Reference for configuration options.

//postcss.config.js or other files you use to config PostCSS

module.exports = {
  plugins: [
    //Other plugins...
    //You have to include this plugin before rfs
    require('postcss-rfs-autopilot')({
      includedRules: [
        '*'
      ], //Rules you want to include, e.g. font-size
      includedSelectors: [
        'p #hello'
      ], //Selectors you want to include,
      includedUnits: [
        'px', 'rem'
      ], //Units you want to include, e.g. px.  Noted that RFS currently only works with px and rem
      excludedRules: [], //Rules you want to exclude
      excludedSelectors: [], //Selectors you want to exclude
      excludedUnits: [] //Units you want to exclude
      }),
    require('rfs')
  ]
}

Apply rfs() to all values, selector, and rules except width and height:

module.exports = {
  plugins: [
    //Other plugins...
    require('postcss-rfs-autopilot')({
      excludedRules: ['width', 'height']
    }),
    require('rfs')
  ]
}

Apply rfs() to class foo and bar only:

module.exports = {
  plugins: [
    //Other plugins...
    require('postcss-rfs-autopilot')({
      includedSelectors: ['.foo', '.bar']
    }),
    require('rfs')
  ]
}

Exclusion rules will have precedence over inclusion rules, which means that if a same rules is found in both includedRules and excludedRules, it will be excluded.

If you want to include all for an option, pass in "*" as its value.

Data type: [Array]

Default value: [ '*' ]

Description: Control which CSS rules you want this plugin wrap it up with rfs(), for example font-size

Data type: [Array]

Default value: [ '*' ]

Description: Control which CSS selectors you want this plugin wrap it up with rfs(), for example p .free

Data type: [Array]

Default value: [ 'px', 'rem' ]

Description: Control which CSS units you want this plugin wrap it up with rfs(), for example px

Data type: [Array]

Default value: []

Description: Control which CSS rules you do not want this plugin wrap it up with rfs(), for example font-size

Data type: [Array]

Default value: []

Description: Control which CSS selectors you do not want this plugin wrap it up with rfs(), for example p .free

Data type: [Array]

Default value: []

Description: Control which CSS units you do not want this plugin wrap it up with rfs(), for example px

Data type: [Boolean]

Default value: false

Description: Set it true to suppress all logs in console.