.stylelintrc

{
    "extends": ["stylelint-config-standard", "stylelint-config-idiomatic-order"],
	"fix": true,
	"plugins": [
		"stylelint-scss"
	],
	"ignoreFiles": ["**/*.html"],
    "rules": {
		"at-rule-no-unknown": null,
		"scss/at-rule-no-unknown": true,
        "indentation": 4,
        "string-quotes": ["double", {"severity": "warning"}],
        "no-duplicate-selectors": true,
        "color-hex-case": ["lower", {"severity": "warning"}],
        "color-hex-length": "short",
        "color-named": ["always-where-possible", {"severity": "warning"}],
        "selector-combinator-space-after": "always",
        "selector-attribute-quotes": "always",
        "selector-attribute-operator-space-before": "never",
        "selector-attribute-operator-space-after": "never",
        "selector-attribute-brackets-space-inside": "never",
        "declaration-block-trailing-semicolon": "always",
        "declaration-colon-space-before": "never",
        "declaration-colon-space-after": "always-single-line",
        "declaration-colon-newline-after": "always-multi-line",
        "number-leading-zero": "never",
        "function-url-quotes": "never",
        "font-weight-notation": "numeric",
        "font-family-name-quotes": "always-where-recommended",
        "comment-whitespace-inside": "always",
        "comment-empty-line-before": "always",
        "rule-empty-line-before": [
			"always",
			ignore: ["after-comment", "first-nested", "inside-block"]
			],
        "selector-pseudo-element-colon-notation": "single",
        "selector-pseudo-class-parentheses-space-inside": "never",
        "media-feature-range-operator-space-before": "never",
        "media-feature-range-operator-space-after": "always",
        "media-feature-parentheses-space-inside": "never",
        "media-feature-colon-space-before": "never",
        "media-feature-colon-space-after": "always",
        "no-descending-specificity": null,
        "no-eol-whitespace": [
            true,
            {
                "severity": "warning",
                ignore: ["empty-lines"]
            }
        ],
        "block-no-empty": [
            true,
            {
                "severity": "warning",
                ignore: ["comments"]
            }
        ]
    },
	"syntax": "scss"
}

package.dev-dependencies.json

{
    "stylelint-config-idiomatic-order": "*",
    "stylelint-config-standard": "*",
    "stylelint-scss": "*"
}