Units

data | schema

Units are CSS units like em or px. Most of them are defined in the CSS Values and Units specification.

Structure for units

A unit object looks like this:

"ch": {
  "groups": [
    "CSS Values and Units"
  ],
  "status": "standard"
}

The 2 properties are both required.

• groups (array of strings): CSS is organized in modules like "CSS Values and Units". MDN organizes features in these groups as well — groups should contain the name of the module(s) the unit is defined in.
• status (enum string): This is either standard, nonstandard, experimental or obsolete depending on the standardization status of the feature.