add postcss-focus & postcss-color-rgba-fallback

package.json

@@ -54,6 +54,8 @@
     "postcss": "^7.x",
     "postcss-clean": "^1.1.0",
     "postcss-cli": "^7.1.1",
+    "postcss-color-rgba-fallback": "^4.0.0",
+    "postcss-focus": "^4.0.0",
     "postcss-reporter": "^6.0.1",
     "prettier": "^2.0.5",
     "rimraf": "^3.0.2",

postcss.config.js

@@ -4,6 +4,10 @@ module.exports = {
   },
   plugins: [
     require("autoprefixer")(),
+    require("postcss-focus")(),
+    require("postcss-color-rgba-fallback")({
+      properties: [ "background-image" ]
+    }),
     require("postcss-clean")({
       compatibility: "*",
       level: 0,

yarn.lock

@@ -3724,6 +3724,22 @@ postcss-cli@^7.1.1:
     read-cache "^1.0.0"
     yargs "^15.0.2"
 
+postcss-color-rgba-fallback@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-color-rgba-fallback/-/postcss-color-rgba-fallback-4.0.0.tgz#b836c4a34c747cf9b16f1ebcd7d6016c299e0cf2"
+  integrity sha512-XxjOy2dA/IYY/O9p492lklb0sw2lyshjXCoJQz7Y0YLxT1ymnep5d8LmQPkB+kCTVCzmniJNotiZhWM1RSfANA==
+  dependencies:
+    postcss "^7.0.17"
+    postcss-value-parser "^4.0.2"
+    rgb-hex "^3.0.0"
+
+postcss-focus@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/postcss-focus/-/postcss-focus-4.0.0.tgz#1c0d4d34a22aa63ccaa31f8da845f7180d203ed8"
+  integrity sha512-hSbpArQGnhj36JtqXTPy6CIvCmjmAS7rxyTgmCwNZY4kIcA6I3/nm3fI0D6OgUcsBMC0Wg2OOD9FRNbtzFILFA==
+  dependencies:
+    postcss "^7.0.2"
+
 postcss-html@^0.36.0:
   version "0.36.0"
   resolved "https://registry.yarnpkg.com/postcss-html/-/postcss-html-0.36.0.tgz#b40913f94eaacc2453fd30a1327ad6ee1f88b204"
@@ -3810,7 +3826,7 @@ postcss-syntax@^0.36.2:
   resolved "https://registry.yarnpkg.com/postcss-syntax/-/postcss-syntax-0.36.2.tgz#f08578c7d95834574e5593a82dfbfa8afae3b51c"
   integrity sha512-nBRg/i7E3SOHWxF3PpF5WnJM/jQ1YpY9000OaVXlAQj6Zp/kIqJxEDWIZ67tAd7NLuk7zqN4yqe9nc0oNAOs1w==
 
-postcss-value-parser@^4.0.3, postcss-value-parser@^4.1.0:
+postcss-value-parser@^4.0.2, postcss-value-parser@^4.0.3, postcss-value-parser@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-4.1.0.tgz#443f6a20ced6481a2bda4fa8532a6e55d789a2cb"
   integrity sha512-97DXOFbQJhk71ne5/Mt6cOu6yxsSfM0QGQyl0L25Gca4yGWEGJaig7l7gbCX623VqTBNGLRLaVUCnNkcedlRSQ==
@@ -4176,6 +4192,11 @@ reusify@^1.0.4:
   resolved "https://registry.yarnpkg.com/reusify/-/reusify-1.0.4.tgz#90da382b1e126efc02146e90845a88db12925d76"
   integrity sha512-U9nH88a3fc/ekCF1l0/UP1IosiuIjyTh7hBvXVMHYgVcfGvt897Xguj2UOLDeI5BG2m7/uwyaLVT6fbtCwTyzw==
 
+rgb-hex@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/rgb-hex/-/rgb-hex-3.0.0.tgz#eab0168cc1279563b18a14605315389142e2e487"
+  integrity sha512-8h7ZcwxCBDKvchSWbWngJuSCqJGQ6nDuLLg+QcRyQDbX9jMWt+PpPeXAhSla0GOooEomk3lCprUpGkMdsLjKyg==
+
 rimraf@2.6.3:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.3.tgz#b2d104fe0d8fb27cf9e0a1cda8262dd3833c6cab"