.stylelintrc

{
    "plugins": [
        "stylelint-no-unsupported-browser-features"
    ],
    "rules": {
        "at-rule-name-case": "lower",
        "at-rule-name-space-after": "always",
        "at-rule-semicolon-newline-after": "always",
        "block-closing-brace-newline-after": "always",
        "block-closing-brace-newline-before": "always",
        "block-no-empty": true,
        "block-opening-brace-newline-after": "always",
        "block-opening-brace-space-before": "always",
        "color-hex-case": "lower",
        "color-named": "never",
        "color-no-invalid-hex": true,
        "declaration-bang-space-after": "never",
        "declaration-bang-space-before": "always",
        "declaration-block-no-duplicate-properties": [
            true,
            {
                "ignore": [
                    "consecutive-duplicates"
                ]
            }
        ],
        "declaration-block-no-shorthand-property-overrides": true,
        "declaration-block-semicolon-newline-after": "always",
        "declaration-block-semicolon-newline-before": "never-multi-line",
        "declaration-block-semicolon-space-after": "always-single-line",
        "declaration-block-semicolon-space-before": "never",
        "declaration-block-trailing-semicolon": "always",
        "declaration-colon-space-after": "always",
        "declaration-colon-space-before": "never",
        "font-family-name-quotes": "always-unless-keyword",
        "function-calc-no-unspaced-operator": true,
        "function-comma-space-before": "never",
        "function-name-case": "lower",
        "function-url-quotes": "always",
        "indentation": 4,
        "max-empty-lines": 1,
        "media-feature-colon-space-after": "always",
        "media-feature-colon-space-before": "never",
        "media-feature-range-operator-space-after": "always",
        "media-feature-range-operator-space-before": "always",
        "media-query-list-comma-newline-after": "never-multi-line",
        "media-query-list-comma-newline-before": "never-multi-line",
        "media-query-list-comma-space-after": "always",
        "media-query-list-comma-space-before": "never",
        "no-duplicate-selectors": true,
        "no-eol-whitespace": true,
        "no-extra-semicolons": true,
        "no-invalid-double-slash-comments": true,
        "number-leading-zero": "always",
        "number-max-precision": 2,
        "number-no-trailing-zeros": true,
        "property-case": "lower",
        "plugin/no-unsupported-browser-features": [
            true,
            {
                "severity": "error",
                "ignore": [
                    "calc",
                    "user-select-none",
                    "multicolumn",
                    "css-appearance",
                    "intrinsic-width"
                ]
            }
        ],
        "rule-empty-line-before": [
            "always",
            {
                "ignore": [
                    "after-comment"
                ],
                "except": [
                    "inside-block-and-after-rule",
                    "first-nested"
                ]
            }
        ],
        "selector-attribute-brackets-space-inside": "never",
        "selector-attribute-operator-space-after": "never",
        "selector-attribute-operator-space-before": "never",
        "selector-combinator-space-after": "always",
        "selector-combinator-space-before": "always",
        "selector-list-comma-newline-before": "never-multi-line",
        "selector-list-comma-space-before": "never",
        "selector-max-empty-lines": 0,
        "selector-pseudo-class-case": "lower",
        "selector-pseudo-class-no-unknown": [
            true,
            {
                "ignorePseudoClasses": [
                    "export"
                ]
            }
        ],
        "selector-pseudo-class-parentheses-space-inside": "never",
        "selector-pseudo-element-case": "lower",
        "selector-pseudo-element-colon-notation": "single",
        "selector-pseudo-element-no-unknown": true,
        "selector-type-case": "lower",
        "selector-type-no-unknown": [
            true,
            {
                "ignoreTypes": [
                    "from",
                    "to",
                    "0%",
                    "50%",
                    "100%",
                    "_"
                ]
            }
        ],
        "shorthand-property-no-redundant-values": true,
        "string-no-newline": true,
        "string-quotes": "single",
        "time-min-milliseconds": 100,
        "unit-case": "lower",
        "unit-whitelist": [
            "fr",
            "px",
            "em",
            "rem",
            "%",
            "vw",
            "vh",
            "deg",
            "ms",
            "s"
        ],
        "value-keyword-case": "lower",
        "value-list-comma-newline-after": "never-multi-line",
        "value-list-comma-newline-before": "never-multi-line",
        "value-list-comma-space-after": "always",
        "value-list-comma-space-before": "never"
    }
}