Update devDependencies

* @babel/cli                   ^7.12.13  →  ^7.12.16
* @babel/core                  ^7.12.13  →  ^7.12.16
* @babel/preset-env            ^7.12.13  →  ^7.12.16
* @rollup/plugin-babel           ^5.2.3  →    ^5.3.0
* @rollup/plugin-node-resolve   ^11.1.1  →   ^11.2.0
* eslint                        ^7.19.0  →   ^7.20.0
* eslint-plugin-unicorn         ^27.0.0  →   ^28.0.1
* karma                          ^6.0.4  →    ^6.1.1
* postcss                        ^8.2.5  →    ^8.2.6
* rollup                        ^2.38.5  →   ^2.39.0
* stylelint                     ^13.9.0  →  ^13.10.0

Kept clean-css-cli to 4.x for the time being.

2 files changed, 149 insertions, 122 deletions

diff --git a/package-lock.json b/package-lock.json
index c9b956487..02dad9c13 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "@babel/cli": {
-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/cli/-/cli-7.12.13.tgz",
-      "integrity": "sha512-Zto3HPeE0GRmaxobUl7NvFTo97NKe1zdAuWqTO8oka7nE0IIqZ4CFvuRZe1qf+ZMd7eHMhwqrecjwc10mjXo/g==",
+      "version": "7.12.16",
+      "resolved": "https://registry.npmjs.org/@babel/cli/-/cli-7.12.16.tgz",
+      "integrity": "sha512-cKWkNCxbpjSuYLbdeJs4kOnyW1E2D65pu7SodXDOkzahIN/wSgT8geIqf6+pJTgCo47zrOMGcJTmjSFe5WKYwQ==",
       "dev": true,
       "requires": {
         "@nicolo-ribaudo/chokidar-2": "2.1.8-no-fsevents",
@@ -38,16 +38,16 @@
       "dev": true
     },
     "@babel/core": {
-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.12.13.tgz",
-      "integrity": "sha512-BQKE9kXkPlXHPeqissfxo0lySWJcYdEP0hdtJOH/iJfDdhOCcgtNCjftCJg3qqauB4h+lz2N6ixM++b9DN1Tcw==",
+      "version": "7.12.16",
+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.12.16.tgz",
+      "integrity": "sha512-t/hHIB504wWceOeaOoONOhu+gX+hpjfeN6YRBT209X/4sibZQfSF1I0HFRRlBe97UZZosGx5XwUg1ZgNbelmNw==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.12.13",
-        "@babel/generator": "^7.12.13",
+        "@babel/generator": "^7.12.15",
         "@babel/helper-module-transforms": "^7.12.13",
         "@babel/helpers": "^7.12.13",
-        "@babel/parser": "^7.12.13",
+        "@babel/parser": "^7.12.16",
         "@babel/template": "^7.12.13",
         "@babel/traverse": "^7.12.13",
         "@babel/types": "^7.12.13",
@@ -108,34 +108,34 @@
       }
     },
     "@babel/helper-compilation-targets": {
-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.12.13.tgz",
-      "integrity": "sha512-dXof20y/6wB5HnLOGyLh/gobsMvDNoekcC+8MCV2iaTd5JemhFkPD73QB+tK3iFC9P0xJC73B6MvKkyUfS9cCw==",
+      "version": "7.12.16",
+      "resolved": "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.12.16.tgz",
+      "integrity": "sha512-dBHNEEaZx7F3KoUYqagIhRIeqyyuI65xMndMZ3WwGwEBI609I4TleYQHcrS627vbKyNTXqShoN+fvYD9HuQxAg==",
       "dev": true,
       "requires": {
         "@babel/compat-data": "^7.12.13",
-        "@babel/helper-validator-option": "^7.12.11",
+        "@babel/helper-validator-option": "^7.12.16",
         "browserslist": "^4.14.5",
         "semver": "^5.5.0"
       }
     },
     "@babel/helper-create-class-features-plugin": {
-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.12.13.tgz",
-      "integrity": "sha512-Vs/e9wv7rakKYeywsmEBSRC9KtmE7Px+YBlESekLeJOF0zbGUicGfXSNi3o+tfXSNS48U/7K9mIOOCR79Cl3+Q==",
+      "version": "7.12.16",
+      "resolved": "https://registry.npmjs.org/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.12.16.tgz",
+      "integrity": "sha512-KbSEj8l9zYkMVHpQqM3wJNxS1d9h3U9vm/uE5tpjMbaj3lTp+0noe3KPsV5dSD9jxKnf9jO9Ip9FX5PKNZCKow==",
       "dev": true,
       "requires": {
         "@babel/helper-function-name": "^7.12.13",
-        "@babel/helper-member-expression-to-functions": "^7.12.13",
+        "@babel/helper-member-expression-to-functions": "^7.12.16",
         "@babel/helper-optimise-call-expression": "^7.12.13",
         "@babel/helper-replace-supers": "^7.12.13",
         "@babel/helper-split-export-declaration": "^7.12.13"
       }
     },
     "@babel/helper-create-regexp-features-plugin": {
-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/helper-create-regexp-features-plugin/-/helper-create-regexp-features-plugin-7.12.13.tgz",
-      "integrity": "sha512-XC+kiA0J3at6E85dL5UnCYfVOcIZ834QcAY0TIpgUVnz0zDzg+0TtvZTnJ4g9L1dPRGe30Qi03XCIS4tYCLtqw==",
+      "version": "7.12.16",
+      "resolved": "https://registry.npmjs.org/@babel/helper-create-regexp-features-plugin/-/helper-create-regexp-features-plugin-7.12.16.tgz",
+      "integrity": "sha512-jAcQ1biDYZBdaAxB4yg46/XirgX7jBDiMHDbwYQOgtViLBXGxJpZQ24jutmBqAIB/q+AwB6j+NbBXjKxEY8vqg==",
       "dev": true,
       "requires": {
         "@babel/helper-annotate-as-pure": "^7.12.13",
@@ -181,9 +181,9 @@
       }
     },
     "@babel/helper-member-expression-to-functions": {
-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.12.13.tgz",
-      "integrity": "sha512-B+7nN0gIL8FZ8SvMcF+EPyB21KnCcZHQZFczCxbiNGV/O0rsrSBlWGLzmtBJ3GMjSVMIm4lpFhR+VdVBuIsUcQ==",
+      "version": "7.12.16",
+      "resolved": "https://registry.npmjs.org/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.12.16.tgz",
+      "integrity": "sha512-zYoZC1uvebBFmj1wFAlXwt35JLEgecefATtKp20xalwEK8vHAixLBXTGxNrVGEmTT+gzOThUgr8UEdgtalc1BQ==",
       "dev": true,
       "requires": {
         "@babel/types": "^7.12.13"
@@ -287,9 +287,9 @@
       "dev": true
     },
     "@babel/helper-validator-option": {
-      "version": "7.12.11",
-      "resolved": "https://registry.npmjs.org/@babel/helper-validator-option/-/helper-validator-option-7.12.11.tgz",
-      "integrity": "sha512-TBFCyj939mFSdeX7U7DDj32WtzYY7fDcalgq8v3fBZMNOJQNn7nOYzMaUCiPxPYfCup69mtIpqlKgMZLvQ8Xhw==",
+      "version": "7.12.16",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-option/-/helper-validator-option-7.12.16.tgz",
+      "integrity": "sha512-uCgsDBPUQDvzr11ePPo4TVEocxj8RXjUVSC/Y8N1YpVAI/XDdUwGJu78xmlGhTxj2ntaWM7n9LQdRtyhOzT2YQ==",
       "dev": true
     },
     "@babel/helper-wrap-function": {
@@ -327,9 +327,9 @@
       }
     },
     "@babel/parser": {
-      "version": "7.12.15",
-      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.12.15.tgz",
-      "integrity": "sha512-AQBOU2Z9kWwSZMd6lNjCX0GUgFonL1wAM1db8L8PMk9UDaGsRCArBkU4Sc+UCM3AE4hjbXx+h58Lb3QT4oRmrA==",
+      "version": "7.12.16",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.12.16.tgz",
+      "integrity": "sha512-c/+u9cqV6F0+4Hpq01jnJO+GLp2DdT63ppz9Xa+6cHaajM9VFzK/iDXiKK65YtpeVwu+ctfS6iqlMqRgQRzeCw==",
       "dev": true
     },
     "@babel/plugin-proposal-async-generator-functions": {
@@ -354,12 +354,12 @@
       }
     },
     "@babel/plugin-proposal-dynamic-import": {
-      "version": "7.12.1",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-dynamic-import/-/plugin-proposal-dynamic-import-7.12.1.tgz",
-      "integrity": "sha512-a4rhUSZFuq5W8/OO8H7BL5zspjnc1FLd9hlOxIK/f7qG4a0qsqk8uvF/ywgBA8/OmjsapjpvaEOYItfGG1qIvQ==",
+      "version": "7.12.16",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-dynamic-import/-/plugin-proposal-dynamic-import-7.12.16.tgz",
+      "integrity": "sha512-yiDkYFapVxNOCcBfLnsb/qdsliroM+vc3LHiZwS4gh7pFjo5Xq3BDhYBNn3H3ao+hWPvqeeTdU+s+FIvokov+w==",
       "dev": true,
       "requires": {
-        "@babel/helper-plugin-utils": "^7.10.4",
+        "@babel/helper-plugin-utils": "^7.12.13",
         "@babel/plugin-syntax-dynamic-import": "^7.8.0"
       }
     },
@@ -435,9 +435,9 @@
       }
     },
     "@babel/plugin-proposal-optional-chaining": {
-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-optional-chaining/-/plugin-proposal-optional-chaining-7.12.13.tgz",
-      "integrity": "sha512-0ZwjGfTcnZqyV3y9DSD1Yk3ebp+sIUpT2YDqP8hovzaNZnQq2Kd7PEqa6iOIUDBXBt7Jl3P7YAcEIL5Pz8u09Q==",
+      "version": "7.12.16",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-proposal-optional-chaining/-/plugin-proposal-optional-chaining-7.12.16.tgz",
+      "integrity": "sha512-O3ohPwOhkwji5Mckb7F/PJpJVJY3DpPsrt/F0Bk40+QMk9QpAIqeGusHWqu/mYqsM8oBa6TziL/2mbERWsUZjg==",
       "dev": true,
       "requires": {
         "@babel/helper-plugin-utils": "^7.12.13",
@@ -886,19 +886,19 @@
       }
     },
     "@babel/preset-env": {
-      "version": "7.12.13",
-      "resolved": "https://registry.npmjs.org/@babel/preset-env/-/preset-env-7.12.13.tgz",
-      "integrity": "sha512-JUVlizG8SoFTz4LmVUL8++aVwzwxcvey3N0j1tRbMAXVEy95uQ/cnEkmEKHN00Bwq4voAV3imQGnQvpkLAxsrw==",
+      "version": "7.12.16",
+      "resolved": "https://registry.npmjs.org/@babel/preset-env/-/preset-env-7.12.16.tgz",
+      "integrity": "sha512-BXCAXy8RE/TzX416pD2hsVdkWo0G+tYd16pwnRV4Sc0fRwTLRS/Ssv8G5RLXUGQv7g4FG7TXkdDJxCjQ5I+Zjg==",
       "dev": true,
       "requires": {
         "@babel/compat-data": "^7.12.13",
-        "@babel/helper-compilation-targets": "^7.12.13",
+        "@babel/helper-compilation-targets": "^7.12.16",
         "@babel/helper-module-imports": "^7.12.13",
         "@babel/helper-plugin-utils": "^7.12.13",
-        "@babel/helper-validator-option": "^7.12.11",
+        "@babel/helper-validator-option": "^7.12.16",
         "@babel/plugin-proposal-async-generator-functions": "^7.12.13",
         "@babel/plugin-proposal-class-properties": "^7.12.13",
-        "@babel/plugin-proposal-dynamic-import": "^7.12.1",
+        "@babel/plugin-proposal-dynamic-import": "^7.12.16",
         "@babel/plugin-proposal-export-namespace-from": "^7.12.13",
         "@babel/plugin-proposal-json-strings": "^7.12.13",
         "@babel/plugin-proposal-logical-assignment-operators": "^7.12.13",
@@ -906,7 +906,7 @@
         "@babel/plugin-proposal-numeric-separator": "^7.12.13",
         "@babel/plugin-proposal-object-rest-spread": "^7.12.13",
         "@babel/plugin-proposal-optional-catch-binding": "^7.12.13",
-        "@babel/plugin-proposal-optional-chaining": "^7.12.13",
+        "@babel/plugin-proposal-optional-chaining": "^7.12.16",
         "@babel/plugin-proposal-private-methods": "^7.12.13",
         "@babel/plugin-proposal-unicode-property-regex": "^7.12.13",
         "@babel/plugin-syntax-async-generators": "^7.8.0",
@@ -1095,9 +1095,9 @@
       }
     },
     "@istanbuljs/schema": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/@istanbuljs/schema/-/schema-0.1.2.tgz",
-      "integrity": "sha512-tsAQNx32a8CoFhjhijUIhI4kccIAgmGhy8LZMZgGfmXcpMbPRUqn5LWmgRttILi6yeGmBJd2xsPkFMs0PzgPCw==",
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/@istanbuljs/schema/-/schema-0.1.3.tgz",
+      "integrity": "sha512-ZXRY4jNvVgSVQ8DL3LTcakaAtXwTVUxE81hslsyD2AtoXW/wVob10HkOJ1X/pAlcI7D+2YoZKg5do8G/w6RYgA==",
       "dev": true
     },
     "@nicolo-ribaudo/chokidar-2": {
@@ -1147,9 +1147,9 @@
       }
     },
     "@rollup/plugin-babel": {
-      "version": "5.2.3",
-      "resolved": "https://registry.npmjs.org/@rollup/plugin-babel/-/plugin-babel-5.2.3.tgz",
-      "integrity": "sha512-DOMc7nx6y5xFi86AotrFssQqCen6CxYn+zts5KSI879d4n1hggSb4TH3mjVgG17Vc3lZziWWfcXzrEmVdzPMdw==",
+      "version": "5.3.0",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-babel/-/plugin-babel-5.3.0.tgz",
+      "integrity": "sha512-9uIC8HZOnVLrLHxayq/PTzw+uS25E14KPUBh5ktF+18Mjo5yK0ToMMx6epY0uEgkjwJw0aBW4x2horYXh8juWw==",
       "dev": true,
       "requires": {
         "@babel/helper-module-imports": "^7.10.4",
@@ -1180,9 +1180,9 @@
       }
     },
     "@rollup/plugin-node-resolve": {
-      "version": "11.1.1",
-      "resolved": "https://registry.npmjs.org/@rollup/plugin-node-resolve/-/plugin-node-resolve-11.1.1.tgz",
-      "integrity": "sha512-zlBXR4eRS+2m79TsUZWhsd0slrHUYdRx4JF+aVQm+MI0wsKdlpC2vlDVjmlGvtZY1vsefOT9w3JxvmWSBei+Lg==",
+      "version": "11.2.0",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-node-resolve/-/plugin-node-resolve-11.2.0.tgz",
+      "integrity": "sha512-qHjNIKYt5pCcn+5RUBQxK8krhRvf1HnyVgUCcFFcweDS7fhkOLZeYh0mhHK6Ery8/bb9tvN/ubPzmfF0qjDCTA==",
       "dev": true,
       "requires": {
         "@rollup/pluginutils": "^3.1.0",
@@ -1287,9 +1287,9 @@
       "dev": true
     },
     "@types/cors": {
-      "version": "2.8.9",
-      "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.9.tgz",
-      "integrity": "sha512-zurD1ibz21BRlAOIKP8yhrxlqKx6L9VCwkB5kMiP6nZAhoF5MvC7qS1qPA7nRcr1GJolfkQC7/EAL4hdYejLtg==",
+      "version": "2.8.10",
+      "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.10.tgz",
+      "integrity": "sha512-C7srjHiVG3Ey1nR6d511dtDkCEjxuN9W1HWAEjGq8kpcwmNM6JJkpC0xvabM7BXTG2wDq8Eu33iH9aQKa7IvLQ==",
       "dev": true
     },
     "@types/estree": {
@@ -1320,9 +1320,9 @@
       "dev": true
     },
     "@types/node": {
-      "version": "14.14.25",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-14.14.25.tgz",
-      "integrity": "sha512-EPpXLOVqDvisVxtlbvzfyqSsFeQxltFbluZNRndIb8tr9KiBnYNLzrc1N3pyKUCww2RNrfHDViqDWWE1LCJQtQ==",
+      "version": "14.14.28",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-14.14.28.tgz",
+      "integrity": "sha512-lg55ArB+ZiHHbBBttLpzD07akz0QPrZgUODNakeC09i62dnrywr9mFErHuaPlB6I7z+sEbK+IYmplahvplCj2g==",
       "dev": true
     },
     "@types/normalize-package-data": {
@@ -2424,9 +2424,9 @@
       }
     },
     "caniuse-lite": {
-      "version": "1.0.30001185",
-      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001185.tgz",
-      "integrity": "sha512-Fpi4kVNtNvJ15H0F6vwmXtb3tukv3Zg3qhKkOGUq7KJ1J6b9kf4dnNgtEAFXhRsJo0gNj9W60+wBvn0JcTvdTg==",
+      "version": "1.0.30001187",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001187.tgz",
+      "integrity": "sha512-w7/EP1JRZ9552CyrThUnay2RkZ1DXxKe/Q2swTC4+LElLh9RRYrL1Z+27LlakB8kzY0fSmHw9mc7XYDUKAKWMA==",
       "dev": true
     },
     "caseless": {
@@ -3508,9 +3508,9 @@
       "dev": true
     },
     "electron-to-chromium": {
-      "version": "1.3.658",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.658.tgz",
-      "integrity": "sha512-1sRTaBVbn02sqadml7IchB1VxgRBcrJg55rlNa7dNszT0ZDDAM0/8NVHtbe0yCrOafLVB+lBzapWX1HpS+Knhg==",
+      "version": "1.3.665",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.665.tgz",
+      "integrity": "sha512-LIjx1JheOz7LM8DMEQ2tPnbBzJ4nVG1MKutsbEMLnJfwfVdPIsyagqfLp56bOWhdBrYGXWHaTayYkllIU2TauA==",
       "dev": true
     },
     "emoji-regex": {
@@ -3684,12 +3684,12 @@
       "dev": true
     },
     "eslint": {
-      "version": "7.19.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-7.19.0.tgz",
-      "integrity": "sha512-CGlMgJY56JZ9ZSYhJuhow61lMPPjUzWmChFya71Z/jilVos7mR/jPgaEfVGgMBY5DshbKdG8Ezb8FDCHcoMEMg==",
+      "version": "7.20.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-7.20.0.tgz",
+      "integrity": "sha512-qGi0CTcOGP2OtCQBgWZlQjcTuP0XkIpYFj25XtRTQSHC+umNnp7UMshr2G8SLsRFYDdAPFeHOsiteadmMH02Yw==",
       "dev": true,
       "requires": {
-        "@babel/code-frame": "^7.0.0",
+        "@babel/code-frame": "7.12.11",
         "@eslint/eslintrc": "^0.3.0",
         "ajv": "^6.10.0",
         "chalk": "^4.0.0",
@@ -3701,7 +3701,7 @@
         "eslint-utils": "^2.1.0",
         "eslint-visitor-keys": "^2.0.0",
         "espree": "^7.3.1",
-        "esquery": "^1.2.0",
+        "esquery": "^1.4.0",
         "esutils": "^2.0.2",
         "file-entry-cache": "^6.0.0",
         "functional-red-black-tree": "^1.0.1",
@@ -3728,6 +3728,15 @@
         "v8-compile-cache": "^2.0.3"
       },
       "dependencies": {
+        "@babel/code-frame": {
+          "version": "7.12.11",
+          "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.12.11.tgz",
+          "integrity": "sha512-Zt1yodBx1UcyiePMSkWnU4hPqhwq7hGi2nFL1LeA3EUl+q2LQx16MISgJ0+z7dnmgvP9QtIleuETGOiOH1RcIw==",
+          "dev": true,
+          "requires": {
+            "@babel/highlight": "^7.10.4"
+          }
+        },
         "ansi-styles": {
           "version": "4.3.0",
           "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
@@ -3954,15 +3963,16 @@
       }
     },
     "eslint-plugin-unicorn": {
-      "version": "27.0.0",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-unicorn/-/eslint-plugin-unicorn-27.0.0.tgz",
-      "integrity": "sha512-uUvlueTa4SpkvLjbkqx08JbB0tY6XxOAa8vlfwbTzITfVNy3go3QzPCus49fO5M/mfooOuraIDVkaqan/pLAHg==",
+      "version": "28.0.1",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-unicorn/-/eslint-plugin-unicorn-28.0.1.tgz",
+      "integrity": "sha512-VuohWRKJuVhuClqZcq+DREAFNDEUDqU7E95SY6Ql3BmH8je5yVqZ6AE7dHQWEa6mDm3aUmo/eT3fXg1jCk17ZA==",
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         "clean-regexp": "^1.0.0",
         "eslint-template-visitor": "^2.2.2",
         "eslint-utils": "^2.1.0",
+        "eslint-visitor-keys": "^2.0.0",
         "import-modules": "^2.1.0",
         "lodash": "^4.17.20",
         "pluralize": "^8.0.0",
@@ -5197,9 +5207,9 @@
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-      "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.5.tgz",
-      "integrity": "sha512-kBBSQbz2K0Nyn+31j/w36fUfxkBW9/gfwRWdUY1ULReH3iokVJgddZAFcD1D0xlgTmFxJCbUkUclAlc6/IDJkw==",
+      "version": "4.2.6",
+      "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.6.tgz",
+      "integrity": "sha512-nTnJ528pbqxYanhpDYsi4Rd8MAeaBA67+RZ10CM1m3bTAVFEDcd5AuA4a6W5YkGZ1iNXHzZz8T6TBKLeBuNriQ==",
       "dev": true
     },
     "gzip-size": {
@@ -6265,9 +6275,9 @@
       "dev": true
     },
     "karma": {
-      "version": "6.0.4",
-      "resolved": "https://registry.npmjs.org/karma/-/karma-6.0.4.tgz",
-      "integrity": "sha512-Yk451MSSV82wwThwissGvTpaHYhKDOzzzcguj+XYMmLF9ZN6QDnUmOexzYPeDcne6g0eWEkP1QttzX0N9lQybw==",
+      "version": "6.1.1",
+      "resolved": "https://registry.npmjs.org/karma/-/karma-6.1.1.tgz",
+      "integrity": "sha512-vVDFxFGAsclgmFjZA/qGw5xqWdZIWxVD7xLyCukYUYd5xs/uGzYbXGOT5zOruVBQleKEmXIr4H2hzGCTn+M9Cg==",
       "dev": true,
       "requires": {
         "body-parser": "^1.19.0",
@@ -6438,9 +6448,9 @@
       "dev": true
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     "known-css-properties": {
-      "version": "0.20.0",
-      "resolved": "https://registry.npmjs.org/known-css-properties/-/known-css-properties-0.20.0.tgz",
-      "integrity": "sha512-URvsjaA9ypfreqJ2/ylDr5MUERhJZ+DhguoWRr2xgS5C7aGCalXo+ewL+GixgKBfhT2vuL02nbIgNGqVWgTOYw==",
+      "version": "0.21.0",
+      "resolved": "https://registry.npmjs.org/known-css-properties/-/known-css-properties-0.21.0.tgz",
+      "integrity": "sha512-sZLUnTqimCkvkgRS+kbPlYW5o8q5w1cu+uIisKpEWkj31I8mx8kNG162DwRav8Zirkva6N5uoFsm9kzK4mUXjw==",
       "dev": true
     },
     "latest-version": {
@@ -7114,9 +7124,9 @@
       "dev": true
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     "mime-db": {
-      "version": "1.45.0",
-      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.45.0.tgz",
-      "integrity": "sha512-CkqLUxUk15hofLoLyljJSrukZi8mAtgd+yE5uO4tqRZsdsAJKv0O+rFMhVDRJgozy+yG6md5KwuXhD4ocIoP+w==",
+      "version": "1.46.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.46.0.tgz",
+      "integrity": "sha512-svXaP8UQRZ5K7or+ZmfNhg2xX3yKDMUzqadsSqi4NCH/KomcH75MAMYAGVlvXn4+b/xOPhS3I2uHKRUzvjY7BQ==",
       "dev": true
     },
     "mime-types": {
@@ -7126,6 +7136,14 @@
       "dev": true,
       "requires": {
         "mime-db": "1.45.0"
+      },
+      "dependencies": {
+        "mime-db": {
+          "version": "1.45.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.45.0.tgz",
+          "integrity": "sha512-CkqLUxUk15hofLoLyljJSrukZi8mAtgd+yE5uO4tqRZsdsAJKv0O+rFMhVDRJgozy+yG6md5KwuXhD4ocIoP+w==",
+          "dev": true
+        }
       }
     },
     "mimic-response": {
@@ -8618,9 +8636,9 @@
       "optional": true
     },
     "postcss": {
-      "version": "8.2.5",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.2.5.tgz",
-      "integrity": "sha512-wMcb7BpDcm3gxQOQx46NDNT36Kk0Ao6PJLLI2ed5vehbbbxCEuslSQzbQ2sfSKy+gkYxhWcGWSeaK+gwm4KIZg==",
+      "version": "8.2.6",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.2.6.tgz",
+      "integrity": "sha512-xpB8qYxgPuly166AGlpRjUdEYtmOWx2iCwGmrv4vqZL9YPVviDVPZPRXxnXr6xPZOdxQ9lp3ZBFCRgWJ7LE3Sg==",
       "dev": true,
       "requires": {
         "colorette": "^1.2.1",
@@ -9186,6 +9204,12 @@
         "strict-uri-encode": "^1.0.0"
       }
     },
+    "queue-microtask": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.2.2.tgz",
+      "integrity": "sha512-dB15eXv3p2jDlbOiNLyMabYg1/sXvppd8DP2J3EOCQ0AkuSXCW2tP7mnVouVLJKgUMY6yP0kcQDVpLCN13h4Xg==",
+      "dev": true
+    },
     "quick-lru": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/quick-lru/-/quick-lru-4.0.1.tgz",
@@ -9577,12 +9601,12 @@
       "dev": true
     },
     "resolve": {
-      "version": "1.19.0",
-      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.19.0.tgz",
-      "integrity": "sha512-rArEXAgsBG4UgRGcynxWIWKFvh/XZCcS8UJdHhwy91zwAvCZIbcs+vAbflgBnNjYMs/i/i+/Ux6IZhML1yPvxg==",
+      "version": "1.20.0",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.20.0.tgz",
+      "integrity": "sha512-wENBPt4ySzg4ybFQW2TT1zMQucPK95HSh/nq2CFTZVOGut2+pQvSsgtda4d26YrYcr067wjbmzOG8byDPBX63A==",
       "dev": true,
       "requires": {
-        "is-core-module": "^2.1.0",
+        "is-core-module": "^2.2.0",
         "path-parse": "^1.0.6"
       }
     },
@@ -9637,19 +9661,22 @@
       }
     },
     "rollup": {
-      "version": "2.38.5",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.38.5.tgz",
-      "integrity": "sha512-VoWt8DysFGDVRGWuHTqZzT02J0ASgjVq/hPs9QcBOGMd7B+jfTr/iqMVEyOi901rE3xq+Deq66GzIT1yt7sGwQ==",
+      "version": "2.39.0",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.39.0.tgz",
+      "integrity": "sha512-+WR3bttcq7zE+BntH09UxaW3bQo3vItuYeLsyk4dL2tuwbeSKJuvwiawyhEnvRdRgrII0Uzk00FpctHO/zB1kw==",
       "dev": true,
       "requires": {
         "fsevents": "~2.3.1"
       }
     },
     "run-parallel": {
-      "version": "1.1.10",
-      "resolved": "https://registry.npmjs.org/run-parallel/-/run-parallel-1.1.10.tgz",
-      "integrity": "sha512-zb/1OuZ6flOlH6tQyMPUrE3x3Ulxjlo9WIVXR4yVYi4H9UXQaeIsPbLn2R3O3vQCnDKkAl2qHiuocKKX4Tz/Sw==",
-      "dev": true
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/run-parallel/-/run-parallel-1.2.0.tgz",
+      "integrity": "sha512-5l4VyZR86LZ/lDxZTR6jqL8AFE2S0IFLMP26AbjsLVADxHdhB/c0GUsH+y39UfCi3dzz8OlQuPmnaJOMoDHQBA==",
+      "dev": true,
+      "requires": {
+        "queue-microtask": "^1.2.2"
+      }
     },
     "safe-buffer": {
       "version": "5.1.2",
@@ -10651,9 +10678,9 @@
       "dev": true
     },
     "stylelint": {
-      "version": "13.9.0",
-      "resolved": "https://registry.npmjs.org/stylelint/-/stylelint-13.9.0.tgz",
-      "integrity": "sha512-VVWH2oixOAxpWL1vH+V42ReCzBjW2AeqskSAbi8+3OjV1Xg3VZkmTcAqBZfRRvJeF4BvYuDLXebW3tIHxgZDEg==",
+      "version": "13.10.0",
+      "resolved": "https://registry.npmjs.org/stylelint/-/stylelint-13.10.0.tgz",
+      "integrity": "sha512-eDuLrL0wzPKbl5/TbNGZcbw0lTIGbDEr5W6lCODvb1gAg0ncbgCRt7oU0C2VFDvbrcY0A3MFZOwltwTRmc0XCw==",
       "dev": true,
       "requires": {
         "@stylelint/postcss-css-in-js": "^0.37.2",
@@ -10675,7 +10702,7 @@
         "ignore": "^5.1.8",
         "import-lazy": "^4.0.0",
         "imurmurhash": "^0.1.4",
-        "known-css-properties": "^0.20.0",
+        "known-css-properties": "^0.21.0",
         "lodash": "^4.17.20",
         "log-symbols": "^4.0.0",
         "mathml-tag-names": "^2.1.3",
@@ -11087,9 +11114,9 @@
       },
       "dependencies": {
         "ajv": {
-          "version": "7.0.4",
-          "resolved": "https://registry.npmjs.org/ajv/-/ajv-7.0.4.tgz",
-          "integrity": "sha512-xzzzaqgEQfmuhbhAoqjJ8T/1okb6gAzXn/eQRNpAN1AEUoHJTNF9xCDRTtf/s3SKldtZfa+RJeTs+BQq+eZ/sw==",
+          "version": "7.1.0",
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-7.1.0.tgz",
+          "integrity": "sha512-svS9uILze/cXbH0z2myCK2Brqprx/+JJYK5pHicT/GQiBfzzhUVAIT6MwqJg8y4xV/zoGsUeuPuwtoiKSGE15g==",
           "dev": true,
           "requires": {
             "fast-deep-equal": "^3.1.1",
@@ -11437,9 +11464,9 @@
       }
     },
     "ua-parser-js": {
-      "version": "0.7.23",
-      "resolved": "https://registry.npmjs.org/ua-parser-js/-/ua-parser-js-0.7.23.tgz",
-      "integrity": "sha512-m4hvMLxgGHXG3O3fQVAyyAQpZzDOvwnhOTjYz5Xmr7r/+LpkNy3vJXdVRWgd1TkAb7NGROZuSy96CrlNVjA7KA==",
+      "version": "0.7.24",
+      "resolved": "https://registry.npmjs.org/ua-parser-js/-/ua-parser-js-0.7.24.tgz",
+      "integrity": "sha512-yo+miGzQx5gakzVK3QFfN0/L9uVhosXBBO7qmnk7c2iw1IhL212wfA3zbnI54B0obGwC/5NWub/iT9sReMx+Fw==",
       "dev": true
     },
     "unbzip2-stream": {
@@ -12047,9 +12074,9 @@
       }
     },
     "yargs-parser": {
-      "version": "20.2.4",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.4.tgz",
-      "integrity": "sha512-WOkpgNhPTlE73h4VFAFsOnomJVaovO8VqLDzy5saChRBFQFBoMYirowyW+Q9HB4HFF4Z7VZTiG3iSzJJA29yRA==",
+      "version": "20.2.5",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.5.tgz",
+      "integrity": "sha512-jYRGS3zWy20NtDtK2kBgo/TlAoy5YUuhD9/LZ7z7W4j1Fdw2cqD0xEEclf8fxc8xjD6X5Qr+qQQwCEsP8iRiYg==",
       "dev": true
     },
     "yauzl": {
diff --git a/package.json b/package.json
index 34cb3f247..493e9b2c8 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
     "docs-serve": "hugo server --port 9001 --disableFastRender",
     "docs-serve-only": "npx sirv-cli _gh_pages --port 9001",
     "lockfile-lint": "lockfile-lint --allowed-hosts npm --allowed-schemes https: --empty-hostname false --type npm --path package-lock.json",
-    "update-deps": "ncu -u -x \"jquery,karma-browserstack-launcher,sinon,terser\" && npm update && echo Manually update site/assets/js/vendor",
+    "update-deps": "ncu -u -x \"clean-css-cli,jquery,karma-browserstack-launcher,sinon,terser\" && npm update && echo Manually update site/assets/js/vendor",
     "release": "npm-run-all dist release-sri docs-build release-zip*",
     "release-sri": "node build/generate-sri.js",
     "release-version": "node build/change-version.js",
@@ -94,28 +94,28 @@
     "popper.js": "^1.16.1"
   },
   "devDependencies": {
-    "@babel/cli": "^7.12.13",
-    "@babel/core": "^7.12.13",
-    "@babel/preset-env": "^7.12.13",
-    "@rollup/plugin-babel": "^5.2.3",
+    "@babel/cli": "^7.12.16",
+    "@babel/core": "^7.12.16",
+    "@babel/preset-env": "^7.12.16",
+    "@rollup/plugin-babel": "^5.3.0",
     "@rollup/plugin-commonjs": "^17.1.0",
-    "@rollup/plugin-node-resolve": "^11.1.1",
+    "@rollup/plugin-node-resolve": "^11.2.0",
     "autoprefixer": "^10.2.4",
     "babel-plugin-istanbul": "^6.0.0",
     "bundlewatch": "^0.3.2",
     "clean-css-cli": "^4.3.0",
     "cross-env": "^7.0.3",
-    "eslint": "^7.19.0",
+    "eslint": "^7.20.0",
     "eslint-config-xo": "^0.34.0",
     "eslint-plugin-import": "^2.22.1",
-    "eslint-plugin-unicorn": "^27.0.0",
+    "eslint-plugin-unicorn": "^28.0.1",
     "find-unused-sass-variables": "^3.1.0",
     "glob": "^7.1.6",
     "hammer-simulator": "0.0.1",
     "hugo-bin": "^0.68.0",
     "ip": "^1.1.5",
     "jquery": "^3.5.1",
-    "karma": "^6.0.4",
+    "karma": "^6.1.1",
     "karma-browserstack-launcher": "1.4.0",
     "karma-chrome-launcher": "^3.1.0",
     "karma-coverage-istanbul-reporter": "^3.0.3",
@@ -129,13 +129,13 @@
     "nodemon": "^2.0.7",
     "npm-run-all": "^4.1.5",
     "popper.js": "^1.16.1",
-    "postcss": "^8.2.5",
+    "postcss": "^8.2.6",
     "postcss-cli": "^8.3.1",
     "qunit": "^2.14.0",
-    "rollup": "^2.38.5",
+    "rollup": "^2.39.0",
     "shelljs": "^0.8.4",
     "sinon": "^7.5.0",
-    "stylelint": "^13.9.0",
+    "stylelint": "^13.10.0",
     "stylelint-config-twbs-bootstrap": "^2.1.0",
     "terser": "5.1.0",
     "vnu-jar": "21.2.5"