Details

Configure which units are allowed for property values.

By default a value may have any kind of unit. You can adjust which units are allowed globally by setting the global option. Alternately, you can specify a list of units for a single property by adding it to the properties option, e.g.

PropertyUnits:
  global: ['em', 'rem', '%'] # Allow relative units globally
  properties:
    border: ['px'] # Only pixels
    line-height: [] # No units allowed
    margin: ['em', 'rem']

With the above configuration, the following issues would be reported:

p {
  border: 1rem solid blue; // rem not in `border` list
  line-height: 55px; // px not in `line-height` list
  padding: 10px; // px not in `global` list
  margin: 10%; // % not in `margin` list
}