diff --git a/package-lock.json b/package-lock.json
index 4d08c32..07051a1 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -3048,6 +3107,20 @@
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+      "resolved": "https://registry.npmjs.org/postcss-ordered-values/-/postcss-ordered-values-4.1.1.tgz",
+      "integrity": "sha512-PeJiLgJWPzkVF8JuKSBcylaU+hDJ/TX3zqAMIjlghgn1JBi6QwQaDZoDIlqWRcCAI8SxKrt3FCPSRmOgKRB97Q==",
+      "requires": {
+        "cssnano-util-get-arguments": "^4.0.0",
+        "postcss": "^7.0.0",
+        "postcss-value-parser": "^3.0.0"
+      }
+    },
+    "postcss-reduce-initial": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/postcss-reduce-initial/-/postcss-reduce-initial-4.0.2.tgz",
+      "integrity": "sha512-epUiC39NonKUKG+P3eAOKKZtm5OtAtQJL7Ye0CBN1f+UQTHzqotudp+hki7zxXm7tT0ZAKDMBj1uihpPjP25ug==",
+      "requires": {
+        "browserslist": "^4.0.0",
+        "caniuse-api": "^3.0.0",
+        "has": "^1.0.0",
+        "postcss": "^7.0.0"
+      }
+    },
+    "postcss-reduce-transforms": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/postcss-reduce-transforms/-/postcss-reduce-transforms-4.0.1.tgz",
+      "integrity": "sha512-sZVr3QlGs0pjh6JAIe6DzWvBaqYw05V1t3d9Tp+VnFRT5j+rsqoWsysh/iSD7YNsULjq9IAylCznIwVd5oU/zA==",
+      "requires": {
+        "cssnano-util-get-match": "^4.0.0",
+        "has": "^1.0.0",
+        "postcss": "^7.0.0",
+        "postcss-value-parser": "^3.0.0"
+      }
+    },
+    "postcss-selector-parser": {
+      "version": "5.0.0-rc.4",
+      "resolved": "https://registry.npmjs.org/postcss-selector-parser/-/postcss-selector-parser-5.0.0-rc.4.tgz",
+      "integrity": "sha512-0XvfYuShrKlTk1ooUrVzMCFQRcypsdEIsGqh5IxC5rdtBi4/M/tDAJeSONwC2MTqEFsmPZYAV7Dd4X8rgAfV0A==",
+      "requires": {
+        "cssesc": "^2.0.0",
+        "indexes-of": "^1.0.1",
+        "uniq": "^1.0.1"
+      },
+      "dependencies": {
+        "cssesc": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/cssesc/-/cssesc-2.0.0.tgz",
+          "integrity": "sha512-MsCAG1z9lPdoO/IUMLSBWBSVxVtJ1395VGIQ+Fc2gNdkQ1hNDnQdw3YhA71WJCBW1vdwA0cAnk/DnW6bqoEUYg=="
+        }
+      }
+    },
+    "postcss-svgo": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/postcss-svgo/-/postcss-svgo-4.0.1.tgz",
+      "integrity": "sha512-YD5uIk5NDRySy0hcI+ZJHwqemv2WiqqzDgtvgMzO8EGSkK5aONyX8HMVFRFJSdO8wUWTuisUFn/d7yRRbBr5Qw==",
+      "requires": {
+        "is-svg": "^3.0.0",
+        "postcss": "^7.0.0",
+        "postcss-value-parser": "^3.0.0",
+        "svgo": "^1.0.0"
+      }
+    },
+    "postcss-unique-selectors": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/postcss-unique-selectors/-/postcss-unique-selectors-4.0.1.tgz",
+      "integrity": "sha512-+JanVaryLo9QwZjKrmJgkI4Fn8SBgRO6WXQBJi7KiAVPlmxikB5Jzc4EvXMT2H0/m0RjrVVm9rGNhZddm/8Spg==",
+      "requires": {
+        "alphanum-sort": "^1.0.0",
+        "postcss": "^7.0.0",
+        "uniqs": "^2.0.0"
+      }
+    },
     "postcss-value-parser": {
       "version": "3.3.0",
       "resolved": "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-3.3.0.tgz",
@@ -8297,6 +8968,16 @@
       "resolved": "https://registry.npmjs.org/ret/-/ret-0.1.15.tgz",
       "integrity": "sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg=="
     },
+    "rgb-regex": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/rgb-regex/-/rgb-regex-1.0.1.tgz",
+      "integrity": "sha1-wODWiC3w4jviVKR16O3UGRX+rrE="
+    },
+    "rgba-regex": {
+      "version": "1.0.0",
+      "resolved": "http://registry.npmjs.org/rgba-regex/-/rgba-regex-1.0.0.tgz",
+      "integrity": "sha1-QzdOLiyglosO8VI0YLfXMP8i7rM="
+    },
     "rimraf": {
       "version": "2.6.2",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.2.tgz",
@@ -8487,8 +9168,8 @@
       }
     },
     "sapper": {
-      "version": "github:nolanlawson/sapper#fe16f53a03390437d3097cd4e1e422ba04595322",
-      "from": "github:nolanlawson/sapper#nolan/sw-index-html-built",
+      "version": "github:nolanlawson/sapper#83dcd2b59ea53f564a6ff695ad46cda2efa1d586",
+      "from": "github:nolanlawson/sapper#nolan/sw-index-html-built-2",
       "requires": {
         "html-minifier": "^3.5.20",
         "shimport": "0.0.11",
@@ -8667,6 +9348,21 @@
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
       "integrity": "sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0="
     },
+    "simple-swizzle": {
+      "version": "0.2.2",
+      "resolved": "https://registry.npmjs.org/simple-swizzle/-/simple-swizzle-0.2.2.tgz",
+      "integrity": "sha1-pNprY1/8zMoz9w0Xy5JZLeleVXo=",
+      "requires": {
+        "is-arrayish": "^0.3.1"
+      },
+      "dependencies": {
+        "is-arrayish": {
+          "version": "0.3.2",
+          "resolved": "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.3.2.tgz",
+          "integrity": "sha512-eVRqCvVlZbuw3GrM63ovNSNAeA1K16kaR/LRY/92w0zxQ5/1YzwblUX652i4Xs9RwAGjW9d9y6X88t8OaAJfWQ=="
+        }
+      }
+    },
     "slash": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/slash/-/slash-1.0.0.tgz",
@@ -9120,6 +9816,28 @@
       "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
       "dev": true
     },
+    "stylehacks": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/stylehacks/-/stylehacks-4.0.1.tgz",
+      "integrity": "sha512-TK5zEPeD9NyC1uPIdjikzsgWxdQQN/ry1X3d1iOz1UkYDCmcr928gWD1KHgyC27F50UnE0xCTrBOO1l6KR8M4w==",
+      "requires": {
+        "browserslist": "^4.0.0",
+        "postcss": "^7.0.0",
+        "postcss-selector-parser": "^3.0.0"
+      },
+      "dependencies": {
+        "postcss-selector-parser": {
+          "version": "3.1.1",
+          "resolved": "https://registry.npmjs.org/postcss-selector-parser/-/postcss-selector-parser-3.1.1.tgz",
+          "integrity": "sha1-T4dfSvsMllc9XPTXQBGu4lCn6GU=",
+          "requires": {
+            "dot-prop": "^4.1.1",
+            "indexes-of": "^1.0.1",
+            "uniq": "^1.0.1"
+          }
+        }
+      }
+    },
     "supports-color": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
@@ -10003,6 +10721,11 @@
         "setimmediate": "^1.0.4"
       }
     },
+    "timsort": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/timsort/-/timsort-0.3.0.tgz",
+      "integrity": "sha1-QFQRqOfmM5/mTbmiNN4R3DHgK9Q="
+    },
     "tiny-queue": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/tiny-queue/-/tiny-queue-0.2.1.tgz",
@@ -10254,8 +10977,12 @@
     "uniq": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/uniq/-/uniq-1.0.1.tgz",
-      "integrity": "sha1-sxxa6CVIRKOoKBVBzisEuGWnNP8=",
-      "dev": true
+      "integrity": "sha1-sxxa6CVIRKOoKBVBzisEuGWnNP8="
+    },
+    "uniqs": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/uniqs/-/uniqs-2.0.0.tgz",
+      "integrity": "sha1-/+3ks2slKQaW5uFl1KWe25mOawI="
     },
     "unique-filename": {
       "version": "1.1.0",
@@ -10448,6 +11175,11 @@
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
       "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
     },
+    "vendors": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/vendors/-/vendors-1.0.2.tgz",
+      "integrity": "sha512-w/hry/368nO21AN9QljsaIhb9ZiZtZARoVH5f3CsFbawdLdayCgKRPup7CggujvySMxx0I91NOyxdVENohprLQ=="
+    },
     "verror": {
       "version": "1.10.0",
       "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
diff --git a/package.json b/package.json
index 0f6b10a..5bb68af 100644
--- a/package.json
+++ b/package.json
@@ -68,10 +68,12 @@
     "localstorage-memory": "^1.0.3",
     "lodash-es": "^4.17.11",
     "lodash-webpack-plugin": "^0.11.5",
+    "mini-css-extract-plugin": "^0.5.0",
     "mkdirp": "^0.5.1",
     "node-fetch": "^2.3.0",
     "node-sass": "^4.10.0",
     "npm-run-all": "^4.1.5",
+    "optimize-css-assets-webpack-plugin": "^5.0.1",
     "p-any": "^1.1.0",
     "page-lifecycle": "^0.1.1",
     "performance-now": "^2.1.0",
@@ -81,7 +83,7 @@
     "rollup": "^0.67.4",
     "rollup-plugin-replace": "^2.1.0",
     "rollup-plugin-terser": "^3.0.0",
-    "sapper": "github:nolanlawson/sapper#nolan/sw-index-html-built",
+    "sapper": "github:nolanlawson/sapper#nolan/sw-index-html-built-2",
     "serve-static": "^1.13.2",
     "stringz": "^1.0.0",
     "svelte": "^2.15.3",
diff --git a/webpack/client.config.js b/webpack/client.config.js
index 0754ef4..b25dac6 100644
--- a/webpack/client.config.js
+++ b/webpack/client.config.js
@@ -3,6 +3,8 @@ const config = require('sapper/config/webpack.js')
 const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin
 const LodashModuleReplacementPlugin = require('lodash-webpack-plugin')
 const TerserWebpackPlugin = require('terser-webpack-plugin')
+const MiniCssExtractPlugin = require('mini-css-extract-plugin')
+const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin')
 
 const isDev = process.env.NODE_ENV === 'development'
 
@@ -24,9 +26,17 @@ module.exports = {
             dev: isDev,
             hydratable: true,
             store: true,
-            hotReload: isDev
+            hotReload: isDev,
+            emitCss: !isDev
           }
         }
+      },
+      !isDev && {
+        test: /\.css$/,
+        use: [
+          MiniCssExtractPlugin.loader,
+          'css-loader'
+        ]
       }
     ].filter(Boolean)
   },
@@ -50,7 +60,8 @@ module.exports = {
           },
           safari10: true
         }
-      })
+      }),
+      new OptimizeCSSAssetsPlugin({})
     ],
     splitChunks: {
       chunks: 'async',
@@ -68,6 +79,10 @@ module.exports = {
       requestTimeout: 120000
     })
   ] : [
+    new MiniCssExtractPlugin({
+      filename: '[name].[hash].css',
+      chunkFilename: '[name].[id].[hash].css'
+    }),
     new webpack.DefinePlugin({
       'process.browser': true,
       'process.env.NODE_ENV': '"production"'