Optimize css by inlining it in html

web/next.config.js

@@ -1,7 +1,10 @@
 /** @type {import('next').NextConfig} */
 module.exports = {
   reactStrictMode: true,
-  experimental: { externalDir: true },
+  experimental: {
+    externalDir: true,
+    optimizeCss: true,
+  },
   images: {
     domains: ['lh3.googleusercontent.com'],
   },

web/package.json

@@ -32,6 +32,7 @@
     "@types/react": "17.0.37",
     "autoprefixer": "10.2.6",
     "concurrently": "6.5.1",
+    "critters": "0.0.16",
     "eslint": "7.32.0",
     "eslint-config-next": "12.0.4",
     "husky": "7.0.4",

web/yarn.lock

@@ -1200,6 +1200,11 @@ bn.js@^5.0.0, bn.js@^5.1.1:
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.2.0.tgz#358860674396c6997771a9d051fcc1b57d4ae002"
   integrity sha512-D7iWRBvnZE8ecXiLj/9wbxH7Tk79fAh8IHaTNq1RWRixsS02W+5qS+iE9yq6RYl0asXx5tw0bLhmT5pIfbSquw==
 
+boolbase@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/boolbase/-/boolbase-1.0.0.tgz#68dff5fbe60c51eb37725ea9e3ed310dcc1e776e"
+  integrity sha1-aN/1++YMUes3cl6p4+0xDcwed24=
+
 brace-expansion@^1.1.7:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
@@ -1599,6 +1604,18 @@ create-hmac@^1.1.0, create-hmac@^1.1.4, create-hmac@^1.1.7:
     safe-buffer "^5.0.1"
     sha.js "^2.4.8"
 
+critters@^0.0.16:
+  version "0.0.16"
+  resolved "https://registry.yarnpkg.com/critters/-/critters-0.0.16.tgz#ffa2c5561a65b43c53b940036237ce72dcebfe93"
+  integrity sha512-JwjgmO6i3y6RWtLYmXwO5jMd+maZt8Tnfu7VVISmEWyQqfLpB8soBswf8/2bu6SBXxtKA68Al3c+qIG1ApT68A==
+  dependencies:
+    chalk "^4.1.0"
+    css-select "^4.2.0"
+    parse5 "^6.0.1"
+    parse5-htmlparser2-tree-adapter "^6.0.1"
+    postcss "^8.3.7"
+    pretty-bytes "^5.3.0"
+
 cross-spawn@^7.0.0, cross-spawn@^7.0.2, cross-spawn@^7.0.3:
   version "7.0.3"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-7.0.3.tgz#f73a85b9d5d41d045551c177e2882d4ac85728a6"
@@ -1625,6 +1642,22 @@ crypto-browserify@3.12.0:
     randombytes "^2.0.0"
     randomfill "^1.0.3"
 
+css-select@^4.2.0:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/css-select/-/css-select-4.2.1.tgz#9e665d6ae4c7f9d65dbe69d0316e3221fb274cdd"
+  integrity sha512-/aUslKhzkTNCQUB2qTX84lVmfia9NyjP3WpDGtj/WxhwBzWBYUV3DgUpurHTme8UTPcPlAD1DJ+b0nN/t50zDQ==
+  dependencies:
+    boolbase "^1.0.0"
+    css-what "^5.1.0"
+    domhandler "^4.3.0"
+    domutils "^2.8.0"
+    nth-check "^2.0.1"
+
+css-what@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/css-what/-/css-what-5.1.0.tgz#3f7b707aadf633baf62c2ceb8579b545bb40f7fe"
+  integrity sha512-arSMRWIIFY0hV8pIxZMEfmMI47Wj3R/aWpZDDxWYCPEiOMv6tfOrnpDtgxBYPEQD4V0Y/958+1TdC3iWTFcUPw==
+
 css.escape@1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/css.escape/-/css.escape-1.5.1.tgz#42e27d4fa04ae32f931a4b4d4191fa9cddee97cb"
@@ -1875,11 +1908,41 @@ doctrine@^3.0.0:
   dependencies:
     esutils "^2.0.2"
 
+dom-serializer@^1.0.1:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-1.3.2.tgz#6206437d32ceefaec7161803230c7a20bc1b4d91"
+  integrity sha512-5c54Bk5Dw4qAxNOI1pFEizPSjVsx5+bpJKmL2kPn8JhBUq2q09tTCa3mjijun2NfK78NMouDYNMBkOrPZiS+ig==
+  dependencies:
+    domelementtype "^2.0.1"
+    domhandler "^4.2.0"
+    entities "^2.0.0"
+
 domain-browser@4.19.0:
   version "4.19.0"
   resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-4.19.0.tgz#1093e17c0a17dbd521182fe90d49ac1370054af1"
   integrity sha512-fRA+BaAWOR/yr/t7T9E9GJztHPeFjj8U35ajyAjCDtAAnTn1Rc1f6W6VGPJrO1tkQv9zWu+JRof7z6oQtiYVFQ==
 
+domelementtype@^2.0.1, domelementtype@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-2.2.0.tgz#9a0b6c2782ed6a1c7323d42267183df9bd8b1d57"
+  integrity sha512-DtBMo82pv1dFtUmHyr48beiuq792Sxohr+8Hm9zoxklYPfa6n0Z3Byjj2IV7bmr2IyqClnqEQhfgHJJ5QF0R5A==
+
+domhandler@^4.2.0, domhandler@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-4.3.0.tgz#16c658c626cf966967e306f966b431f77d4a5626"
+  integrity sha512-fC0aXNQXqKSFTr2wDNZDhsEYjCiYsDWl3D01kwt25hm1YIPyDGHvvi3rw+PLqHAl/m71MaiF7d5zvBr0p5UB2g==
+  dependencies:
+    domelementtype "^2.2.0"
+
+domutils@^2.8.0:
+  version "2.8.0"
+  resolved "https://registry.yarnpkg.com/domutils/-/domutils-2.8.0.tgz#4437def5db6e2d1f5d6ee859bd95ca7d02048135"
+  integrity sha512-w96Cjofp72M5IIhpjgobBimYEfoPjx1Vx0BSX9P30WBdZW2WIKU0T1Bd0kz2eNZ9ikjKgHbEyKx8BB6H1L3h3A==
+  dependencies:
+    dom-serializer "^1.0.1"
+    domelementtype "^2.2.0"
+    domhandler "^4.2.0"
+
 electron-to-chromium@^1.3.723, electron-to-chromium@^1.4.17:
   version "1.4.24"
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.4.24.tgz#9cf8a92d5729c480ee47ff0aa5555f57467ae2fa"
@@ -1934,6 +1997,11 @@ enquirer@^2.3.5:
   dependencies:
     ansi-colors "^4.1.1"
 
+entities@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/entities/-/entities-2.2.0.tgz#098dc90ebb83d8dffa089d55256b351d34c4da55"
+  integrity sha512-p92if5Nz619I0w+akJrLZH0MX0Pb5DX39XOwQTtXSdQQOaYH03S1uIQp4mhOZtAXrxq4ViO67YTiLBo2638o9A==
+
 error-ex@^1.3.1:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.2.tgz#b4ac40648107fdcdcfae242f428bea8a14d4f1bf"
@@ -3346,6 +3414,13 @@ npm-run-path@^4.0.0, npm-run-path@^4.0.1:
   dependencies:
     path-key "^3.0.0"
 
+nth-check@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-2.0.1.tgz#2efe162f5c3da06a28959fbd3db75dbeea9f0fc2"
+  integrity sha512-it1vE95zF6dTT9lBsYbxvqh0Soy4SPowchj0UBGj/V6cTPnXXtQOPUbhZ6CmGzAD/rW22LQK6E96pcdJXk4A4w==
+  dependencies:
+    boolbase "^1.0.0"
+
 object-assign@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
@@ -3535,6 +3610,18 @@ parse-json@^5.0.0:
     json-parse-even-better-errors "^2.3.0"
     lines-and-columns "^1.1.6"
 
+parse5-htmlparser2-tree-adapter@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/parse5-htmlparser2-tree-adapter/-/parse5-htmlparser2-tree-adapter-6.0.1.tgz#2cdf9ad823321140370d4dbf5d3e92c7c8ddc6e6"
+  integrity sha512-qPuWvbLgvDGilKc5BoicRovlT4MtYT6JfJyBOMDsKoiT+GiuP5qyrPCnR9HcPECIJJmZh5jRndyNThnhhb/vlA==
+  dependencies:
+    parse5 "^6.0.1"
+
+parse5@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/parse5/-/parse5-6.0.1.tgz#e1a1c085c569b3dc08321184f19a39cc27f7c30b"
+  integrity sha512-Ofn/CTFzRGTTxwpNEs9PP93gXShHcTq255nzRYSKe8AkVpZY7e1fpmTfOyoIvjP5HG7Z2ZM7VS9PPhQGW2pOpw==
+
 path-browserify@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-browserify/-/path-browserify-1.0.1.tgz#d98454a9c3753d5790860f16f68867b9e46be1fd"
@@ -3675,7 +3762,7 @@ postcss@8.3.5:
     nanoid "^3.1.23"
     source-map-js "^0.6.2"
 
-postcss@^8.1.6:
+postcss@^8.1.6, postcss@^8.3.7:
   version "8.4.5"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.5.tgz#bae665764dfd4c6fcc24dc0fdf7e7aa00cc77f95"
   integrity sha512-jBDboWM8qpaqwkMwItqTQTiFikhs/67OYVvblFFTM7MrZjt6yMKd6r2kgXizEbTTljacm4NldIlZnhbjr84QYg==
@@ -3694,6 +3781,11 @@ prettier@2.5.0:
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.5.0.tgz#a6370e2d4594e093270419d9cc47f7670488f893"
   integrity sha512-FM/zAKgWTxj40rH03VxzIPdXmj39SwSjwG0heUcNFwI+EMZJnY93yAiKXM3dObIKAM5TA88werc8T/EwhB45eg==
 
+pretty-bytes@^5.3.0:
+  version "5.6.0"
+  resolved "https://registry.yarnpkg.com/pretty-bytes/-/pretty-bytes-5.6.0.tgz#356256f643804773c82f64723fe78c92c62beaeb"
+  integrity sha512-FFw039TmrBqFK8ma/7OL3sDz/VytdtJr044/QUJtH0wK9lb9jLq9tJyIxUwtQJHwar2BqtiA4iCWSwo9JLkzFg==
+
 pretty-quick@3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/pretty-quick/-/pretty-quick-3.1.2.tgz#89d8741af7122cbd7f34182df746c5a7ea360b5c"