CSS lint options for the modern browser(s)

csslint.clean.json

{
  "box-model"					: true,
  "display-property-grouping"	: true,
  "duplicate-properties"		: true,
  "empty-rules"					: true,
  "known-properties"			: true,
  "non-link-hover"				: false,
  "adjoining-classes"			: false,
  "box-sizing"					: false,
  "compatible-vendor-prefixes"	: true,
  "gradients"					: true,
  "text-indent"					: true,
  "vendor-prefix"				: true,
  "fallback-colors"				: true,
  "star-property-hack"			: true,
  "underscore-property-hack"	: true,
  "bulletproof-font-face"		: false,
  "font-faces"					: true,
  "import"						: true,
  "regex-selectors"				: true,
  "universal-selector"			: true,
  "unqualified-attributes"		: true,
  "zero-units"					: true,
  "overqualified-elements"		: true,
  "shorthand"					: true,
  "duplicate-background-images"	: true,
  "floats"						: true,
  "font-sizes"					: true,
  "ids"							: true,
  "important"					: false,
  "outline-none"				: true,
  "qualified-headings"			: true,
  "unique-headings"				: true,
  "errors"						: true,
  "rules-count"					: true,
  "selector-max-approaching"	: true,
  "selector-max"				: true
}

csslint.json

{
  // Possible Errors
  "box-model"					: true,		// Don't use width or height when using padding or border.
  "display-property-grouping"	: true,		// Certain properties shouldn't be used with certain display property values.
  "duplicate-properties"		: true,		// Duplicate properties must appear one after the other.
  "empty-rules"					: true,		// Rules without any properties specified should be removed.
  "known-properties"			: true,		// Properties should be known (listed in CSS3 specification) or be a vendor-prefixed property.
  "non-link-hover"				: false,	// Avoid un-anchored hovers in doctype strict (targets IE6/7)

  // Compatibility
  "adjoining-classes"			: false,	// Don't use adjoining classes.
  "box-sizing"					: false,	// The box-sizing properties isn't supported in IE6 and IE7.
  "compatible-vendor-prefixes"	: true,		// Include all compatible vendor prefixes to reach a wider range of users.
  "gradients"					: true,		// When using a vendor-prefixed gradient, make sure to use them all.
  "text-indent"					: true,		// Checks for text indent less than -99px
  "vendor-prefix"				: true,		// When using a vendor-prefixed property, make sure to include the standard one.
  "fallback-colors"				: true,		// For older browsers that don't support RGBA, HSL, or HSLA, provide a fallback color.
  "star-property-hack"			: true,		// Checks for the star property hack (targets IE6/7)
  "underscore-property-hack"	: true,		// Checks for the underscore property hack (targets IE6)
  "bulletproof-font-face"		: false,	// Use the bulletproof @font-face syntax to avoid 404's in old IE (http://www.fontspring.com/blog/the-new-bulletproof-font-face-syntax).

  // Performance
  "font-faces"					: true,		// Too many different web fonts in the same stylesheet.
  "import"						: true,		// Don't use @import, use <link> instead.
  "regex-selectors"				: true,		// Selectors that look like regular expressions are slow and should be avoided.
  "universal-selector"			: true,		// The universal selector (*) is known to be slow.
  "unqualified-attributes"		: true,		// Unqualified attribute selectors are known to be slow.
  "zero-units"					: true,		// You don't need to specify units when a value is 0.
  "overqualified-elements"		: true,		// Don't use classes or IDs with elements (a.foo or a#foo).
  "shorthand"					: true,		// Use shorthand properties where possible.
  "duplicate-background-images"	: true,		// Every background-image should be unique. Use a common class for e.g. sprites.

  // Maintainability & Duplication
  "floats"						: true,		// This rule tests if the float property is used too many times
  "font-sizes"					: true,		// Checks the number of font-size declarations.
  "ids"							: true,		// Selectors should not contain IDs.
  "important"					: false,	// Be careful when using !important declaration

  // Accessibility
  "outline-none"				: true,		// Use of outline: none or outline: 0 should be limited to :focus rules.

  // OOCSS
  "qualified-headings"			: true,		// Headings should not be qualified (namespaced).
  "unique-headings"				: true,		// Headings should be defined only once.

  // Settings
  "errors"						: true,		// This rule looks for recoverable syntax errors.
  "rules-count"					: true,		// Track how many rules there are.
  "selector-max-approaching"	: true,		// Will warn when selector count is >= 3800 selectors.
  "selector-max"				: true		// Will error when selector count is > 4095.
}