diff --git a/package.json b/package.json
index 26f99aa4..e4327d4a 100644
--- a/package.json
+++ b/package.json
@@ -112,7 +112,7 @@
     "primer-tooltips": "2.0.0",
     "sinon": "7.5.0",
     "socket.io-client": "2.3.0",
-    "stylelint": "11.1.1",
+    "stylelint": "12.0.0",
     "stylelint-config-standard": "19.0.0",
     "textcomplete": "0.18.0",
     "undate": "0.3.0",
diff --git a/yarn.lock b/yarn.lock
index 1ef99014..23aba821 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -617,6 +617,13 @@
     js-levenshtein "^1.1.3"
     semver "^5.5.0"
 
+"@babel/runtime@^7.6.3":
+  version "7.7.2"
+  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.7.2.tgz#111a78002a5c25fc8e3361bedc9529c696b85a6a"
+  integrity sha512-JONRbXbTXc9WQE2mAZd1p0Z3DZ/6vaQIkgYMSTP3KjRCyd7rCZCcfhCyX+YjwcKxcZ82UrxbRD358bpExNgrjw==
+  dependencies:
+    regenerator-runtime "^0.13.2"
+
 "@babel/template@^7.4.0", "@babel/template@^7.7.0":
   version "7.7.0"
   resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.7.0.tgz#4fadc1b8e734d97f56de39c77de76f2562e597d0"
@@ -764,6 +771,11 @@
   resolved "https://registry.yarnpkg.com/@types/normalize-package-data/-/normalize-package-data-2.4.0.tgz#e486d0d97396d79beedd0a6e33f4534ff6b4973e"
   integrity sha512-f5j5b/Gf71L+dbqxIpQ4Z2WlmI/mPJ0fOkGGmFgtb6sAu97EPczzbS3/tJKxmcYDj55OX6ssqwDAWOHIYDRDGA==
 
+"@types/parse-json@^4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/@types/parse-json/-/parse-json-4.0.0.tgz#2f8bb441434d163b35fb8ffdccd7138927ffb8c0"
+  integrity sha512-//oorEZjL6sbPcKUaCdIGlIUeH26mgzimjBB77G6XRgnDl/L5wOnpyBGRe/Mmf5CVW3PwEBE1NjiMZ/ssFh4wA==
+
 "@types/q@^1.5.1":
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/@types/q/-/q-1.5.2.tgz#690a1475b84f2a884fd07cd797c00f5f31356ea8"
@@ -1083,6 +1095,11 @@ ansi-regex@^4.1.0:
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-4.1.0.tgz#8b9f8f08cf1acb843756a839ca8c7e3168c51997"
   integrity sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==
 
+ansi-regex@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-5.0.0.tgz#388539f55179bf39339c81af30a654d69f87cb75"
+  integrity sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==
+
 ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
@@ -1292,7 +1309,7 @@ atob@^2.1.1:
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
   integrity sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==
 
-autoprefixer@^9.5.1, autoprefixer@^9.6.1:
+autoprefixer@^9.6.1, autoprefixer@^9.7.1:
   version "9.7.1"
   resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.7.1.tgz#9ffc44c55f5ca89253d9bb7186cefb01ef57747f"
   integrity sha512-w3b5y1PXWlhYulevrTJ0lizkQ5CyqfeU6BIRDbuhsMupstHQOeb1Ur80tcB1zxSu7AwyY/qCQ7Vvqklh31ZBFw==
@@ -1786,7 +1803,7 @@ chalk@2.4.2, chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.4.1, chalk@^2.4.
     escape-string-regexp "^1.0.5"
     supports-color "^5.3.0"
 
-chalk@3.0.0:
+chalk@3.0.0, chalk@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-3.0.0.tgz#3f73c2bf526591f574cc492c51e2456349f844e4"
   integrity sha512-4D3B6Wf41KOYRFdszmDqMCGq5VV/uMAB273JILmO+3jAlh8X4qDtdtgCR3fxtbLEMzSx22QdhnDcJvu2u1fVwg==
@@ -2203,7 +2220,7 @@ core-util-is@1.0.2, core-util-is@~1.0.0:
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
   integrity sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=
 
-cosmiconfig@^5.0.0, cosmiconfig@^5.2.0, cosmiconfig@^5.2.1:
+cosmiconfig@^5.0.0, cosmiconfig@^5.2.1:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.2.1.tgz#040f726809c591e77a17c0a3626ca45b4f168b1a"
   integrity sha512-H65gsXo1SKjf8zmrJ67eJk8aIRKV5ff2D4uKZIBZShbhGSpEmsQOPW/SKMKYhSTrqR7ufy6RP69rPogdaPh/kA==
@@ -2213,6 +2230,17 @@ cosmiconfig@^5.0.0, cosmiconfig@^5.2.0, cosmiconfig@^5.2.1:
     js-yaml "^3.13.1"
     parse-json "^4.0.0"
 
+cosmiconfig@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-6.0.0.tgz#da4fee853c52f6b1e6935f41c1a2fc50bd4a9982"
+  integrity sha512-xb3ZL6+L8b9JLLCx3ZdoZy4+2ECphCMo2PwqgP1tlfVq6M6YReyzBJtvWWtbDSpNr9hn96pkCiZqUcFEc+54Qg==
+  dependencies:
+    "@types/parse-json" "^4.0.0"
+    import-fresh "^3.1.0"
+    parse-json "^5.0.0"
+    path-type "^4.0.0"
+    yaml "^1.7.2"
+
 cp-file@^6.2.0:
   version "6.2.0"
   resolved "https://registry.yarnpkg.com/cp-file/-/cp-file-6.2.0.tgz#40d5ea4a1def2a9acdd07ba5c0b0246ef73dc10d"
@@ -4059,7 +4087,7 @@ html-minifier@4.0.0:
     relateurl "^0.2.7"
     uglify-js "^3.5.1"
 
-html-tags@^3.0.0:
+html-tags@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/html-tags/-/html-tags-3.1.0.tgz#7b5e6f7e665e9fb41f30007ed9e0d41e97fb2140"
   integrity sha512-1qYz89hW3lFDEazhjW0yVAV87lw8lVkrJocr72XmBkMKsoSVJCQx3W8BXsC7hO2qAt8BoVjYjtAcZ9perqGnNg==
@@ -4190,7 +4218,7 @@ ignore@^4.0.3, ignore@^4.0.6:
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-4.0.6.tgz#750e3db5862087b4737ebac8207ffd1ef27b25fc"
   integrity sha512-cyFDKrqc/YdcWFniJhzI42+AzS+gNwmUzOSFcRCQYwySuBBBy/KjuxWLZ/FHEH6Moq1NizMOBWyTcv8O4OZIMg==
 
-ignore@^5.0.6, ignore@^5.1.1, ignore@^5.1.4:
+ignore@^5.1.1, ignore@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-5.1.4.tgz#84b7b3dbe64552b6ef0eca99f6743dbec6d97adf"
   integrity sha512-MzbUSahkTW1u7JpKKjY7LCARd1fU5W2rLdxlM4kdkayuCwZImjkpluF9CM1aLewYJguPDqewLam18Y6AU69A8A==
@@ -4218,6 +4246,14 @@ import-fresh@^3.0.0:
     parent-module "^1.0.0"
     resolve-from "^4.0.0"
 
+import-fresh@^3.1.0:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/import-fresh/-/import-fresh-3.2.1.tgz#633ff618506e793af5ac91bf48b72677e15cbe66"
+  integrity sha512-6e1q1cnWP2RXD9/keSkxHScg508CdXqXWgWBaETNhyuBFz+kUZlKboh+ISK+bU++DmbHimVBrOz/zzPe0sZ3sQ==
+  dependencies:
+    parent-module "^1.0.0"
+    resolve-from "^4.0.0"
+
 import-from@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/import-from/-/import-from-2.1.0.tgz#335db7f2a7affd53aaa471d4b8021dee36b7f3b1"
@@ -4613,7 +4649,7 @@ is-symbol@^1.0.2:
   dependencies:
     has-symbols "^1.0.0"
 
-is-typedarray@~1.0.0:
+is-typedarray@^1.0.0, is-typedarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
   integrity sha1-5HnICFjfDBsR3dppQPlgEfzaSpo=
@@ -4896,10 +4932,10 @@ kind-of@^6.0.0, kind-of@^6.0.2:
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
   integrity sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==
 
-known-css-properties@^0.16.0:
-  version "0.16.0"
-  resolved "https://registry.yarnpkg.com/known-css-properties/-/known-css-properties-0.16.0.tgz#3f0597214db11a460df77cd44bcb39e263b9da6c"
-  integrity sha512-0g5vDDPvNnQk7WM/aE92dTDxXJoOE0biiIcUb3qkn/F6h/ZQZPlZIbE2XSXH2vFPfphkgCxuR2vH6HHnobEOaQ==
+known-css-properties@^0.17.0:
+  version "0.17.0"
+  resolved "https://registry.yarnpkg.com/known-css-properties/-/known-css-properties-0.17.0.tgz#1c535f530ee8e9e3e27bb6a718285780e1d07326"
+  integrity sha512-Vi3nxDGMm/z+lAaCjvAR1u+7fiv+sG6gU/iYDj5QOF8h76ytK9EW/EKfF0NeTyiGBi8Jy6Hklty/vxISrLox3w==
 
 lcid@^2.0.0:
   version "2.0.0"
@@ -5231,7 +5267,7 @@ markdown-table@^1.1.0:
   resolved "https://registry.yarnpkg.com/markdown-table/-/markdown-table-1.1.3.tgz#9fcb69bcfdb8717bfd0398c6ec2d93036ef8de60"
   integrity sha512-1RUZVgQlpJSPWYbFSpmudq5nHY1doEIv89gBtF0s4gW1GF2XorxcA/70M5vq7rLv0a6mhOUccRsqkwhwLCIQ2Q==
 
-mathml-tag-names@^2.1.0:
+mathml-tag-names@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/mathml-tag-names/-/mathml-tag-names-2.1.1.tgz#6dff66c99d55ecf739ca53c492e626f1d12a33cc"
   integrity sha512-pWB896KPGSGkp1XtyzRBftpTzwSOL0Gfk0wLvxt4f2mgzjY19o0LxJ3U25vNWTzsh7da+KTbuXQoQ3lOJZ8WHw==
@@ -5353,7 +5389,7 @@ micromatch@^3.0.4, micromatch@^3.1.10, micromatch@^3.1.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.2"
 
-micromatch@^4.0.0, micromatch@^4.0.2:
+micromatch@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-4.0.2.tgz#4fcb0999bf9fbc2fcbdd212f6d629b9a56c39259"
   integrity sha512-y7FpHSbMUMoyPbYUSzO6PaZ6FyRnQOpHuKwbo1G+Knck95XVU4QAiKdGEnj5wwoS7PlOgthX/09u5iFJ+aYf5Q==
@@ -7032,7 +7068,7 @@ postcss-safe-parser@^4.0.1:
   dependencies:
     postcss "^7.0.0"
 
-postcss-sass@^0.4.1:
+postcss-sass@^0.4.2:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/postcss-sass/-/postcss-sass-0.4.2.tgz#7d1f8ddf6960d329de28fb3ff43c9c42013646bc"
   integrity sha512-hcRgnd91OQ6Ot9R90PE/khUDCJHG8Uxxd3F7Y0+9VHjBiJgNv7sK5FxyHMCBtoLmmkzVbSj3M3OlqUfLJpq0CQ==
@@ -8337,6 +8373,15 @@ string-width@^4.1.0:
     is-fullwidth-code-point "^3.0.0"
     strip-ansi "^5.2.0"
 
+string-width@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.0.tgz#952182c46cc7b2c313d1596e623992bd163b72b5"
+  integrity sha512-zUz5JD+tgqtuDjMhwIg5uFVV3dtqZ9yQJlZVfq4I01/K5Paj5UHj7VyrQOJvzawSVlKpObApbfD0Ed6yJc+1eg==
+  dependencies:
+    emoji-regex "^8.0.0"
+    is-fullwidth-code-point "^3.0.0"
+    strip-ansi "^6.0.0"
+
 string.prototype.padend@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/string.prototype.padend/-/string.prototype.padend-3.0.0.tgz#f3aaef7c1719f170c5eab1c32bf780d96e21f2f0"
@@ -8407,6 +8452,13 @@ strip-ansi@^5.0.0, strip-ansi@^5.1.0, strip-ansi@^5.2.0:
   dependencies:
     ansi-regex "^4.1.0"
 
+strip-ansi@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.0.tgz#0b1571dd7669ccd4f3e06e14ef1eed26225ae532"
+  integrity sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==
+  dependencies:
+    ansi-regex "^5.0.0"
+
 strip-bom@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
@@ -8470,15 +8522,15 @@ stylelint-config-standard@19.0.0:
   dependencies:
     stylelint-config-recommended "^3.0.0"
 
-stylelint@11.1.1:
-  version "11.1.1"
-  resolved "https://registry.yarnpkg.com/stylelint/-/stylelint-11.1.1.tgz#6dbbb348036576ac6b033ddfedba72a877c1d6bb"
-  integrity sha512-Vx6TAJsxG6qksiFvxQTKriQhp1CqUWdpTDITEkAjTR+l+8Af7qNlvrUDXfpuFJgXh/ayF8xdMSKE+SstcsPmMA==
+stylelint@12.0.0:
+  version "12.0.0"
+  resolved "https://registry.yarnpkg.com/stylelint/-/stylelint-12.0.0.tgz#2e8613675f7be11769ce474f45137fdf7751380a"
+  integrity sha512-TwqtATrFOT07SPlUGyHN7tVhWqxwitn5BlAvyBQy/ekA+Nwu4mLU9L1dvGQPNxHUBLowjvkSW18QzHHR6/FVVQ==
   dependencies:
-    autoprefixer "^9.5.1"
+    autoprefixer "^9.7.1"
     balanced-match "^1.0.0"
-    chalk "^2.4.2"
-    cosmiconfig "^5.2.0"
+    chalk "^3.0.0"
+    cosmiconfig "^6.0.0"
     debug "^4.1.1"
     execall "^2.0.0"
     file-entry-cache "^5.0.1"
@@ -8486,19 +8538,19 @@ stylelint@11.1.1:
     global-modules "^2.0.0"
     globby "^9.2.0"
     globjoin "^0.1.4"
-    html-tags "^3.0.0"
-    ignore "^5.0.6"
+    html-tags "^3.1.0"
+    ignore "^5.1.4"
     import-lazy "^4.0.0"
     imurmurhash "^0.1.4"
-    known-css-properties "^0.16.0"
+    known-css-properties "^0.17.0"
     leven "^3.1.0"
-    lodash "^4.17.14"
+    lodash "^4.17.15"
     log-symbols "^3.0.0"
-    mathml-tag-names "^2.1.0"
+    mathml-tag-names "^2.1.1"
     meow "^5.0.0"
-    micromatch "^4.0.0"
+    micromatch "^4.0.2"
     normalize-selector "^0.2.0"
-    postcss "^7.0.14"
+    postcss "^7.0.21"
     postcss-html "^0.36.0"
     postcss-jsx "^0.36.3"
     postcss-less "^3.1.4"
@@ -8507,22 +8559,22 @@ stylelint@11.1.1:
     postcss-reporter "^6.0.1"
     postcss-resolve-nested-selector "^0.1.1"
     postcss-safe-parser "^4.0.1"
-    postcss-sass "^0.4.1"
+    postcss-sass "^0.4.2"
     postcss-scss "^2.0.0"
     postcss-selector-parser "^3.1.0"
     postcss-syntax "^0.36.2"
     postcss-value-parser "^4.0.2"
     resolve-from "^5.0.0"
-    signal-exit "^3.0.2"
     slash "^3.0.0"
     specificity "^0.4.1"
-    string-width "^4.1.0"
-    strip-ansi "^5.2.0"
+    string-width "^4.2.0"
+    strip-ansi "^6.0.0"
     style-search "^0.1.0"
     sugarss "^2.0.0"
     svg-tags "^1.0.0"
-    table "^5.2.3"
+    table "^5.4.6"
     v8-compile-cache "^2.1.0"
+    write-file-atomic "^3.0.1"
 
 sugarss@^2.0.0:
   version "2.0.0"
@@ -8588,7 +8640,7 @@ svgo@^1.0.0:
     unquote "~1.1.1"
     util.promisify "~1.0.0"
 
-table@^5.2.3:
+table@^5.2.3, table@^5.4.6:
   version "5.4.6"
   resolved "https://registry.yarnpkg.com/table/-/table-5.4.6.tgz#1292d19500ce3f86053b05f0e8e7e4a3bb21079e"
   integrity sha512-wmEc8m4fjnob4gt5riFRtTu/6+4rSe12TpAELNSqHMfF3IqnA+CH37USM6/YR3qRZv7e56kAEAtd6nKZaxe0Ug==
@@ -8855,6 +8907,13 @@ type-is@~1.6.17, type-is@~1.6.18:
     media-typer "0.3.0"
     mime-types "~2.1.24"
 
+typedarray-to-buffer@^3.1.5:
+  version "3.1.5"
+  resolved "https://registry.yarnpkg.com/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz#a97ee7a9ff42691b9f783ff1bc5112fe3fca9080"
+  integrity sha512-zdu8XMNEDepKKR+XYOXAVPtWui0ly0NtohUscw+UmaHiAWT8hrV1rr//H6V+0DvJ3OQ19S979M0laLfX8rm82Q==
+  dependencies:
+    is-typedarray "^1.0.0"
+
 typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
@@ -9457,6 +9516,16 @@ write-file-atomic@^2.4.2:
     imurmurhash "^0.1.4"
     signal-exit "^3.0.2"
 
+write-file-atomic@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/write-file-atomic/-/write-file-atomic-3.0.1.tgz#558328352e673b5bb192cf86500d60b230667d4b"
+  integrity sha512-JPStrIyyVJ6oCSz/691fAjFtefZ6q+fP6tm+OS4Qw6o+TGQxNp1ziY2PgS+X/m0V8OWhZiO/m4xSj+Pr4RrZvw==
+  dependencies:
+    imurmurhash "^0.1.4"
+    is-typedarray "^1.0.0"
+    signal-exit "^3.0.2"
+    typedarray-to-buffer "^3.1.5"
+
 write@1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/write/-/write-1.0.3.tgz#0800e14523b923a387e415123c865616aae0f5c3"
@@ -9508,6 +9577,13 @@ yallist@^3.0.0, yallist@^3.0.2, yallist@^3.0.3:
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
   integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==
 
+yaml@^1.7.2:
+  version "1.7.2"
+  resolved "https://registry.yarnpkg.com/yaml/-/yaml-1.7.2.tgz#f26aabf738590ab61efaca502358e48dc9f348b2"
+  integrity sha512-qXROVp90sb83XtAoqE8bP9RwAkTTZbugRUTm5YeFCBfNRPEp2YzTeqWiz7m5OORHzEvrA/qcGS8hp/E+MMROYw==
+  dependencies:
+    "@babel/runtime" "^7.6.3"
+
 yargs-parser@13.1.1, yargs-parser@^13.0.0, yargs-parser@^13.1.0, yargs-parser@^13.1.1:
   version "13.1.1"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-13.1.1.tgz#d26058532aa06d365fe091f6a1fc06b2f7e5eca0"