.csslintrc

{

    // false: ignore
    // true: warning
    // 2: error

    // Possible Errors
    "box-model": false,
    "display-property-grouping": 2, //test if it works above media queries
    "duplicate-properties": 2,
    "empty-rules": 2,
    "known-properties": false, // intern css parser, ignores prefix !ATTENTION doesn"t know svg
    // properties

    // Compatibility
    "adjoining-classes": false,
    "box-sizing": false,
    "compatible-vendor-prefixes": false, // use of autoprefix
    "gradients": false,
    "text-indent": false, // no negative text-indent to hide elements (text-indent: -1em;) is ok
    "vendor-prefix": false, // standard property must be after vendor
    "fallback-colors": false,
    "star-property-hack": 2, // disallow <IE8 Hack *width: 100px;
    "underscore-property-hack": 2, // disallow IE7 Hack _width:100px
    "bulletproof-font-face": false,

    // Performance
    "font-faces": false, //no more then 5 Font Faces
    "import": false, // disallow css import -> instead use SCSS @import
    "regex-selectors": false, // disallow regex in a attr selector ex .mybox[class~=xxx]
    "universal-selector": false, // disallow astrix selector as key
    "unqualified-attributes": false, // .class [type=text]
    "zero-units": 2, // warning when 0 has a unit ex 0px => 0
    "overqualified-elements": 2, // disallow div.myclass, but allows div.myclass { color: blue }
    // && p.myclass [ color:red }
    "shorthand": 2, // margin-t r b l or padding-t r b l is set, than shorten to one property
    // margin or padding
    "duplicate-background-images": false,
    "floats": false, // warn when more than 10 floats, could throw error with our grid
    //@BUG 2 still be just a warning
    "font-sizes": false, // no more than 10 different sizes
    "ids": false,
    "important": false,

    // Accessibility
    "outline-none": false,

    // OOCSS
    "qualified-headings": false,
    "unique-headings": false
}