diff --git a/package-lock.json b/package-lock.json
index 7e502ca..c2a92c4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -69,6 +69,15 @@
       "integrity": "sha512-S2Hw0TtNkMJhIabBwIojKL9YHO5T0n5eNqWJ7Lrlel/zDbftQpxpapi8tZs3X1HWa+u+QeydGmzzNU0m09+Rcg==",
       "dev": true
     },
+    "ansi-colors": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-1.1.0.tgz",
+      "integrity": "sha512-SFKX67auSNoVR38N3L+nvsPjOE0bybKTYbkf5tRvushrAPQ9V75huw0ZxBkKVeRU9kqH3d6HA4xTckbwZ4ixmA==",
+      "dev": true,
+      "requires": {
+        "ansi-wrap": "^0.1.0"
+      }
+    },
     "ansi-cyan": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/ansi-cyan/-/ansi-cyan-0.1.1.tgz",
@@ -323,17 +332,17 @@
       "dev": true
     },
     "autoprefixer": {
-      "version": "7.2.6",
-      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-7.2.6.tgz",
-      "integrity": "sha512-Iq8TRIB+/9eQ8rbGhcP7ct5cYb/3qjNYAR2SnzLCEcwF6rvVOax8+9+fccgXk4bEhQGjOZd5TLhsksmAdsbGqQ==",
+      "version": "10.4.13",
+      "resolved": "https://registry.npmjs.org/autoprefixer/-/autoprefixer-10.4.13.tgz",
+      "integrity": "sha512-49vKpMqcZYsJjwotvt4+h/BCjJVnhGwcLpDt5xkcaOG3eLrG/HUYLagrihYsQ+qrIBgIzX1Rw7a6L8I/ZA1Atg==",
       "dev": true,
       "requires": {
-        "browserslist": "^2.11.3",
-        "caniuse-lite": "^1.0.30000805",
+        "browserslist": "^4.21.4",
+        "caniuse-lite": "^1.0.30001426",
+        "fraction.js": "^4.2.0",
         "normalize-range": "^0.1.2",
-        "num2fraction": "^1.2.2",
-        "postcss": "^6.0.17",
-        "postcss-value-parser": "^3.2.3"
+        "picocolors": "^1.0.0",
+        "postcss-value-parser": "^4.2.0"
       }
     },
     "aws-sign2": {
@@ -665,13 +674,15 @@
       }
     },
     "browserslist": {
-      "version": "2.11.3",
-      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-2.11.3.tgz",
-      "integrity": "sha512-yWu5cXT7Av6mVwzWc8lMsJMHWn4xyjSuGYi4IozbVTLUOEYPSagUB8kiMDUHA1fS3zjr8nkxkn9jdvug4BBRmA==",
+      "version": "4.21.4",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.21.4.tgz",
+      "integrity": "sha512-CBHJJdDmgjl3daYjN5Cp5kbTf1mUhZoS+beLklHIvkOWscs83YAhLlF3Wsh/lciQYAcbBJgTOD44VtG31ZM4Hw==",
       "dev": true,
       "requires": {
-        "caniuse-lite": "^1.0.30000792",
-        "electron-to-chromium": "^1.3.30"
+        "caniuse-lite": "^1.0.30001400",
+        "electron-to-chromium": "^1.4.251",
+        "node-releases": "^2.0.6",
+        "update-browserslist-db": "^1.0.9"
       }
     },
     "bs-recipes": {
@@ -3428,6 +3439,12 @@
         "mime-types": "^2.1.12"
       }
     },
+    "fraction.js": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/fraction.js/-/fraction.js-4.2.0.tgz",
+      "integrity": "sha512-MhLuK+2gUcnZe8ZHlaaINnQLl0xRIGRfcGk2yl8xoQAfHrSsL3rYu6FCmBdkdbhc9EPlwyGHewaRsvwRMJtAlA==",
+      "dev": true
+    },
     "fragment-cache": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/fragment-cache/-/fragment-cache-0.2.1.tgz",
@@ -3964,17 +3981,103 @@
       }
     },
     "gulp-autoprefixer": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/gulp-autoprefixer/-/gulp-autoprefixer-4.1.0.tgz",
-      "integrity": "sha512-2mpZhnQ1DrHuSeRYqwMSQHKBPscp17Jn7M7rVjHrZKS3Ipt0qqLm+1jdnLtrB745moaMN/evf/nOR1eRJEPlmA==",
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/gulp-autoprefixer/-/gulp-autoprefixer-8.0.0.tgz",
+      "integrity": "sha512-sVR++PIaXpa81p52dmmA/jt50bw0egmylK5mjagfgOJ8uLDGaF9tHyzvetkY9Uo0gBZUS5sVqN3kX/GlUKOyog==",
       "dev": true,
       "requires": {
-        "autoprefixer": "^7.0.0",
-        "fancy-log": "^1.3.2",
-        "plugin-error": "^0.1.2",
-        "postcss": "^6.0.1",
-        "through2": "^2.0.0",
-        "vinyl-sourcemaps-apply": "^0.2.0"
+        "autoprefixer": "^10.2.6",
+        "fancy-log": "^1.3.3",
+        "plugin-error": "^1.0.1",
+        "postcss": "^8.3.0",
+        "through2": "^4.0.2",
+        "vinyl-sourcemaps-apply": "^0.2.1"
+      },
+      "dependencies": {
+        "arr-diff": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/arr-diff/-/arr-diff-4.0.0.tgz",
+          "integrity": "sha512-YVIQ82gZPGBebQV/a8dar4AitzCQs0jjXwMPZllpXMaGjXPYVUawSxQrRsjhjupyVxEvbHgUmIhKVlND+j02kA==",
+          "dev": true
+        },
+        "extend-shallow": {
+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-3.0.2.tgz",
+          "integrity": "sha512-BwY5b5Ql4+qZoefgMj2NUmx+tehVTH/Kf4k1ZEtOHNFcm2wSxMRo992l6X3TIgni2eZVTZ85xMOjF31fwZAj6Q==",
+          "dev": true,
+          "requires": {
+            "assign-symbols": "^1.0.0",
+            "is-extendable": "^1.0.1"
+          }
+        },
+        "fancy-log": {
+          "version": "1.3.3",
+          "resolved": "https://registry.npmjs.org/fancy-log/-/fancy-log-1.3.3.tgz",
+          "integrity": "sha512-k9oEhlyc0FrVh25qYuSELjr8oxsCoc4/LEZfg2iJJrfEk/tZL9bCoJE47gqAvI2m/AUjluCS4+3I0eTx8n3AEw==",
+          "dev": true,
+          "requires": {
+            "ansi-gray": "^0.1.1",
+            "color-support": "^1.1.3",
+            "parse-node-version": "^1.0.0",
+            "time-stamp": "^1.0.0"
+          }
+        },
+        "is-extendable": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/is-extendable/-/is-extendable-1.0.1.tgz",
+          "integrity": "sha512-arnXMxT1hhoKo9k1LZdmlNyJdDDfy2v0fXjFlmok4+i8ul/6WlbVge9bhM74OpNPQPMGUToDtz+KXa1PneJxOA==",
+          "dev": true,
+          "requires": {
+            "is-plain-object": "^2.0.4"
+          }
+        },
+        "plugin-error": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/plugin-error/-/plugin-error-1.0.1.tgz",
+          "integrity": "sha512-L1zP0dk7vGweZME2i+EeakvUNqSrdiI3F91TwEoYiGrAfUXmVv6fJIq4g82PAXxNsWOp0J7ZqQy/3Szz0ajTxA==",
+          "dev": true,
+          "requires": {
+            "ansi-colors": "^1.0.1",
+            "arr-diff": "^4.0.0",
+            "arr-union": "^3.1.0",
+            "extend-shallow": "^3.0.2"
+          }
+        },
+        "readable-stream": {
+          "version": "3.6.0",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
+          "integrity": "sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==",
+          "dev": true,
+          "requires": {
+            "inherits": "^2.0.3",
+            "string_decoder": "^1.1.1",
+            "util-deprecate": "^1.0.1"
+          }
+        },
+        "safe-buffer": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+          "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+          "dev": true
+        },
+        "string_decoder": {
+          "version": "1.3.0",
+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+          "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+          "dev": true,
+          "requires": {
+            "safe-buffer": "~5.2.0"
+          }
+        },
+        "through2": {
+          "version": "4.0.2",
+          "resolved": "https://registry.npmjs.org/through2/-/through2-4.0.2.tgz",
+          "integrity": "sha512-iOqSav00cVxEEICeD7TjLB1sueEL+81Wpzp2bY17uZjZN0pWZPuo4suZ/61VujxmqSGFfgOcNuTZ85QJwNZQpw==",
+          "dev": true,
+          "requires": {
+            "readable-stream": "3"
+          }
+        }
       }
     },
     "gulp-concat": {
@@ -5850,6 +5953,12 @@
       "integrity": "sha512-2ZTgtl0nJsO0KQCjEpxcIr5D+Yv90plTitZt9JBfQvVJDS5seMl3FOvsh3+9CoYWXf/1l5OaZzzF6nDm4cagaQ==",
       "dev": true
     },
+    "nanoid": {
+      "version": "3.3.4",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.4.tgz",
+      "integrity": "sha512-MqBkQh/OHTS2egovRtLk45wEyNXwF+cokD+1YPf9u5VfJiRdAiRwB2froX5Co9Rh20xs4siNPm8naNotSD6RBw==",
+      "dev": true
+    },
     "nanomatch": {
       "version": "1.2.6",
       "resolved": "https://registry.npmjs.org/nanomatch/-/nanomatch-1.2.6.tgz",
@@ -5935,6 +6044,12 @@
         }
       }
     },
+    "node-releases": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-2.0.6.tgz",
+      "integrity": "sha512-PiVXnNuFm5+iYkLBNeq5211hvO38y63T0i2KKh2KnUs3RpzJ+JtODFjkD8yjLwnDkTYF1eKXheUwdssR+NRZdg==",
+      "dev": true
+    },
     "node-sass": {
       "version": "4.14.1",
       "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.14.1.tgz",
@@ -6118,12 +6233,6 @@
         "boolbase": "~1.0.0"
       }
     },
-    "num2fraction": {
-      "version": "1.2.2",
-      "resolved": "https://registry.npmjs.org/num2fraction/-/num2fraction-1.2.2.tgz",
-      "integrity": "sha512-Y1wZESM7VUThYY+4W+X4ySH2maqcA+p7UR+w8VWNWVAd6lwuXXWz/w/Cz43J/dI2I+PS6wD5N+bJUF+gjWvIqg==",
-      "dev": true
-    },
     "number-is-nan": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/number-is-nan/-/number-is-nan-1.0.1.tgz",
@@ -6509,6 +6618,12 @@
         "error-ex": "^1.2.0"
       }
     },
+    "parse-node-version": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/parse-node-version/-/parse-node-version-1.0.1.tgz",
+      "integrity": "sha512-3YHlOa/JgH6Mnpr05jP9eDG254US9ek25LyIxZlDItp2iJtwyaXQb57lBYLdT3MowkUFYEV2XXNAYIPlESvJlA==",
+      "dev": true
+    },
     "parse-passwd": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/parse-passwd/-/parse-passwd-1.0.0.tgz",
@@ -6615,6 +6730,12 @@
       "integrity": "sha512-7EAHlyLHI56VEIdK57uwHdHKIaAGbnXPiw0yWbarQZOKaKpvUIgW0jWRVLiatnM+XXlSwsanIBH/hzGMJulMow==",
       "dev": true
     },
+    "picocolors": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
+      "integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==",
+      "dev": true
+    },
     "picomatch": {
       "version": "2.3.1",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.1.tgz",
@@ -6715,57 +6836,20 @@
       "dev": true
     },
     "postcss": {
-      "version": "6.0.23",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-6.0.23.tgz",
-      "integrity": "sha512-soOk1h6J3VMTZtVeVpv15/Hpdl2cBLX3CAw4TAbkpTJiNPk9YP/zWcD1ND+xEtvyuuvKzbxliTOIyvkSeSJ6ag==",
+      "version": "8.4.19",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.19.tgz",
+      "integrity": "sha512-h+pbPsyhlYj6N2ozBmHhHrs9DzGmbaarbLvWipMRO7RLS+v4onj26MPFXA5OBYFxyqYhUJK456SwDcY9H2/zsA==",
       "dev": true,
       "requires": {
-        "chalk": "^2.4.1",
-        "source-map": "^0.6.1",
-        "supports-color": "^5.4.0"
-      },
-      "dependencies": {
-        "ansi-styles": {
-          "version": "3.2.1",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
-          "dev": true,
-          "requires": {
-            "color-convert": "^1.9.0"
-          }
-        },
-        "chalk": {
-          "version": "2.4.2",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
-          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
-          "dev": true,
-          "requires": {
-            "ansi-styles": "^3.2.1",
-            "escape-string-regexp": "^1.0.5",
-            "supports-color": "^5.3.0"
-          }
-        },
-        "source-map": {
-          "version": "0.6.1",
-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
-          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
-          "dev": true
-        },
-        "supports-color": {
-          "version": "5.5.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
-          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
-          "dev": true,
-          "requires": {
-            "has-flag": "^3.0.0"
-          }
-        }
+        "nanoid": "^3.3.4",
+        "picocolors": "^1.0.0",
+        "source-map-js": "^1.0.2"
       }
     },
     "postcss-value-parser": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-3.3.1.tgz",
-      "integrity": "sha512-pISE66AbVkp4fDQ7VHBwRNXzAAKJjw4Vw7nWI/+Q3vuly7SNfgYXvm6i5IgFylHGK5sP/xHAbB7N49OS4gWNyQ==",
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz",
+      "integrity": "sha512-1NNCs6uurfkVbeXG4S8JFT9t19m45ICnif8zWLd5oPSZ50QnwMfK+H3jv408d4jw/7Bttv5axS5IiHoLaVNHeQ==",
       "dev": true
     },
     "prepend-http": {
@@ -7783,6 +7867,12 @@
       "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
       "dev": true
     },
+    "source-map-js": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.0.2.tgz",
+      "integrity": "sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==",
+      "dev": true
+    },
     "source-map-resolve": {
       "version": "0.5.1",
       "resolved": "https://registry.npmjs.org/source-map-resolve/-/source-map-resolve-0.5.1.tgz",
@@ -8687,6 +8777,16 @@
       "dev": true,
       "optional": true
     },
+    "update-browserslist-db": {
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.0.10.tgz",
+      "integrity": "sha512-OztqDenkfFkbSG+tRxBeAnCVPckDBcvibKd35yDONx6OU8N7sqgwc7rCbkJ/WcYtVRZ4ba68d6byhC21GFh7sQ==",
+      "dev": true,
+      "requires": {
+        "escalade": "^3.1.1",
+        "picocolors": "^1.0.0"
+      }
+    },
     "uri-js": {
       "version": "4.4.1",
       "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
diff --git a/package.json b/package.json
index 99c4d87..89856c6 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "browser-sync": "^2.27.10",
     "del": "^3.0.0",
     "gulp": "^3.9.1",
-    "gulp-autoprefixer": "^4.0.0",
+    "gulp-autoprefixer": "^8.0.0",
     "gulp-concat": "^2.6.1",
     "gulp-imagemin": "^4.0.0",
     "gulp-minify-html": "^1.0.6",
diff --git a/yarn.lock b/yarn.lock
index c9748c6..219f127 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -40,6 +40,12 @@ amdefine@>=0.0.4:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
 
+ansi-colors@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-1.1.0.tgz#6374b4dd5d4718ff3ce27a671a3b1cad077132a9"
+  dependencies:
+    ansi-wrap "^0.1.0"
+
 ansi-gray@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/ansi-gray/-/ansi-gray-0.1.1.tgz#2962cf54ec9792c48510a3deb524436861ef7251"
@@ -70,7 +76,7 @@ ansi-styles@^4.0.0:
   dependencies:
     color-convert "^2.0.1"
 
-ansi-wrap@0.1.0:
+ansi-wrap@0.1.0, ansi-wrap@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/ansi-wrap/-/ansi-wrap-0.1.0.tgz#a82250ddb0015e9a27ca82e82ea603bbfa45efaf"
 
@@ -214,16 +220,16 @@ attempt-x@^1.1.0, attempt-x@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/attempt-x/-/attempt-x-1.1.1.tgz#fba64e96ce03c3e0bd92c92622061c4df387cb76"
 
-autoprefixer@^7.0.0:
-  version "7.2.3"
-  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-7.2.3.tgz#c2841e38b7940c2d0a9bbffd72c75f33637854f8"
+autoprefixer@^10.2.6:
+  version "10.4.13"
+  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-10.4.13.tgz#b5136b59930209a321e9fa3dca2e7c4d223e83a8"
   dependencies:
-    browserslist "^2.10.0"
-    caniuse-lite "^1.0.30000783"
+    browserslist "^4.21.4"
+    caniuse-lite "^1.0.30001426"
+    fraction.js "^4.2.0"
     normalize-range "^0.1.2"
-    num2fraction "^1.2.2"
-    postcss "^6.0.14"
-    postcss-value-parser "^3.2.3"
+    picocolors "^1.0.0"
+    postcss-value-parser "^4.2.0"
 
 aws-sign2@~0.6.0:
   version "0.6.0"
@@ -436,12 +442,14 @@ browser-sync@^2.27.10:
     ua-parser-js "1.0.2"
     yargs "^17.3.1"
 
-browserslist@^2.10.0:
-  version "2.10.0"
-  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-2.10.0.tgz#bac5ee1cc69ca9d96403ffb8a3abdc5b6aed6346"
+browserslist@^4.21.4:
+  version "4.21.4"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.21.4.tgz#e7496bbc67b9e39dd0f98565feccdcb0d4ff6987"
   dependencies:
-    caniuse-lite "^1.0.30000780"
-    electron-to-chromium "^1.3.28"
+    caniuse-lite "^1.0.30001400"
+    electron-to-chromium "^1.4.251"
+    node-releases "^2.0.6"
+    update-browserslist-db "^1.0.9"
 
 bs-recipes@1.3.4:
   version "1.3.4"
@@ -511,9 +519,9 @@ camelcase@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-3.0.0.tgz#32fc4b9fcdaf845fcdf7e73bb97cac2261f0ab0a"
 
-caniuse-lite@^1.0.30000780, caniuse-lite@^1.0.30000783:
-  version "1.0.30000784"
-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000784.tgz#129ced74e9a1280a441880b6cd2bce30ef59e6c0"
+caniuse-lite@^1.0.30001400, caniuse-lite@^1.0.30001426:
+  version "1.0.30001434"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001434.tgz#ec1ec1cfb0a93a34a0600d37903853030520a4e5"
 
 capture-stack-trace@^1.0.0:
   version "1.0.0"
@@ -546,7 +554,7 @@ chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chalk@^2.1.0, chalk@^2.3.0:
+chalk@^2.1.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.0.tgz#b5ea48efc9c1793dccc9b4767c93914d3f2d52ba"
   dependencies:
@@ -1178,15 +1186,9 @@ ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
 
-electron-releases@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/electron-releases/-/electron-releases-2.1.0.tgz#c5614bf811f176ce3c836e368a0625782341fd4e"
-
-electron-to-chromium@^1.3.28:
-  version "1.3.30"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.30.tgz#9666f532a64586651fc56a72513692e820d06a80"
-  dependencies:
-    electron-releases "^2.1.0"
+electron-to-chromium@^1.4.251:
+  version "1.4.284"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.4.284.tgz#61046d1e4cab3a25238f6bf7413795270f125592"
 
 emits@~3.0.0:
   version "3.0.0"
@@ -1431,7 +1433,7 @@ extend-shallow@^2.0.1:
   dependencies:
     is-extendable "^0.1.0"
 
-extend-shallow@^3.0.0:
+extend-shallow@^3.0.0, extend-shallow@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-3.0.2.tgz#26a71aaf073b39fb2127172746131c2704028db8"
   dependencies:
@@ -1465,12 +1467,13 @@ extsprintf@1.3.0, extsprintf@^1.2.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.3.0.tgz#96918440e3041a7a414f8c52e3c574eb3c3e1e05"
 
-fancy-log@^1.1.0:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/fancy-log/-/fancy-log-1.3.2.tgz#f41125e3d84f2e7d89a43d06d958c8f78be16be1"
+fancy-log@^1.1.0, fancy-log@^1.3.3:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/fancy-log/-/fancy-log-1.3.3.tgz#dbc19154f558690150a23953a0adbd035be45fc7"
   dependencies:
     ansi-gray "^0.1.1"
     color-support "^1.1.3"
+    parse-node-version "^1.0.0"
     time-stamp "^1.0.0"
 
 fd-slicer@~1.0.1:
@@ -1630,6 +1633,10 @@ form-data@~2.1.1:
     combined-stream "^1.0.5"
     mime-types "^2.1.12"
 
+fraction.js@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/fraction.js/-/fraction.js-4.2.0.tgz#448e5109a313a3527f5a3ab2119ec4cf0e0e2950"
+
 fragment-cache@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/fragment-cache/-/fragment-cache-0.2.1.tgz#4290fad27f13e89be7f33799c6bc5a0abfff0d19"
@@ -1942,15 +1949,16 @@ graceful-fs@~1.2.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/graceful-readlink/-/graceful-readlink-1.0.1.tgz#4cafad76bc62f02fa039b2f94e9a3dd3a391a725"
 
-gulp-autoprefixer@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/gulp-autoprefixer/-/gulp-autoprefixer-4.0.0.tgz#e00a8c571b85d06516ac26341be90dfd9fc1eab0"
+gulp-autoprefixer@^8.0.0:
+  version "8.0.0"
+  resolved "https://registry.yarnpkg.com/gulp-autoprefixer/-/gulp-autoprefixer-8.0.0.tgz#ee2413d6cb9f7cc2f01b7d9835b46e58e326b88d"
   dependencies:
-    autoprefixer "^7.0.0"
-    gulp-util "^3.0.0"
-    postcss "^6.0.1"
-    through2 "^2.0.0"
-    vinyl-sourcemaps-apply "^0.2.0"
+    autoprefixer "^10.2.6"
+    fancy-log "^1.3.3"
+    plugin-error "^1.0.1"
+    postcss "^8.3.0"
+    through2 "^4.0.2"
+    vinyl-sourcemaps-apply "^0.2.1"
 
 gulp-concat@^2.6.1:
   version "2.6.1"
@@ -3292,6 +3300,10 @@ nan@^2.3.2:
   version "2.8.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.8.0.tgz#ed715f3fe9de02b57a5e6252d90a96675e1f085a"
 
+nanoid@^3.3.4:
+  version "3.3.4"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.3.4.tgz#730b67e3cd09e2deacf03c027c81c9d9dbc5e8ab"
+
 nanomatch@^1.2.5:
   version "1.2.6"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.6.tgz#f27233e97c34a8706b7e781a4bc611c957a81625"
@@ -3342,6 +3354,10 @@ node-gyp@^3.3.1:
     tar "^2.0.0"
     which "1"
 
+node-releases@^2.0.6:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-2.0.6.tgz#8a7088c63a55e493845683ebf3c828d8c51c5503"
+
 node-sass@^4.2.0:
   version "4.7.2"
   resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.7.2.tgz#9366778ba1469eb01438a9e8592f4262bcb6794e"
@@ -3432,10 +3448,6 @@ nth-check@^1.0.1:
   dependencies:
     boolbase "~1.0.0"
 
-num2fraction@^1.2.2:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/num2fraction/-/num2fraction-1.2.2.tgz#6f682b6a027a4e9ddfa4564cd2589d1d4e669ede"
-
 number-is-nan@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
@@ -3662,6 +3674,10 @@ parse-json@^2.1.0, parse-json@^2.2.0:
   dependencies:
     error-ex "^1.2.0"
 
+parse-node-version@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/parse-node-version/-/parse-node-version-1.0.1.tgz#e2b5dbede00e7fa9bc363607f53327e8b073189b"
+
 parse-passwd@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
@@ -3726,6 +3742,10 @@ performance-now@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-0.2.0.tgz#33ef30c5c77d4ea21c5a53869d91b56d8f2555e5"
 
+picocolors@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/picocolors/-/picocolors-1.0.0.tgz#cb5bdc74ff3f51892236eaf79d68bc44564ab81c"
+
 picomatch@^2.0.4, picomatch@^2.2.1, picomatch@^2.3.1:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.3.1.tgz#3ba3833733646d9d3e4995946c1365a67fb07a42"
@@ -3748,6 +3768,15 @@ pinkie@^2.0.0:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
 
+plugin-error@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/plugin-error/-/plugin-error-1.0.1.tgz#77016bd8919d0ac377fdcdd0322328953ca5781c"
+  dependencies:
+    ansi-colors "^1.0.1"
+    arr-diff "^4.0.0"
+    arr-union "^3.1.0"
+    extend-shallow "^3.0.2"
+
 plur@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/plur/-/plur-2.1.2.tgz#7482452c1a0f508e3e344eaec312c91c29dc655a"
@@ -3765,17 +3794,17 @@ posix-character-classes@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
 
-postcss-value-parser@^3.2.3:
-  version "3.3.0"
-  resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-3.3.0.tgz#87f38f9f18f774a4ab4c8a232f5c5ce8872a9d15"
+postcss-value-parser@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-4.2.0.tgz#723c09920836ba6d3e5af019f92bc0971c02e514"
 
-postcss@^6.0.1, postcss@^6.0.14:
-  version "6.0.14"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-6.0.14.tgz#5534c72114739e75d0afcf017db853099f562885"
+postcss@^8.3.0:
+  version "8.4.19"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.19.tgz#61178e2add236b17351897c8bcc0b4c8ecab56fc"
   dependencies:
-    chalk "^2.3.0"
-    source-map "^0.6.1"
-    supports-color "^4.4.0"
+    nanoid "^3.3.4"
+    picocolors "^1.0.0"
+    source-map-js "^1.0.2"
 
 prepend-http@^1.0.1:
   version "1.0.4"
@@ -3879,6 +3908,14 @@ read-pkg@^1.0.0:
     normalize-package-data "^2.3.2"
     path-type "^1.0.0"
 
+readable-stream@3:
+  version "3.6.0"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.6.0.tgz#337bbda3adc0706bd3e024426a286d4b4b2c9198"
+  dependencies:
+    inherits "^2.0.3"
+    string_decoder "^1.1.1"
+    util-deprecate "^1.0.1"
+
 "readable-stream@>=1.0.33-1 <1.1.0-0":
   version "1.0.34"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
@@ -4094,6 +4131,10 @@ safe-buffer@^5.0.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
 
+safe-buffer@~5.2.0:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
+
 "safer-buffer@>= 2.1.2 < 3":
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
@@ -4311,6 +4352,10 @@ socket.io@^4.4.1:
     socket.io-adapter "~2.4.0"
     socket.io-parser "~4.2.0"
 
+source-map-js@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.2.tgz#adbc361d9c62df380125e7f161f71c826f1e490c"
+
 source-map-resolve@^0.5.0:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.1.tgz#7ad0f593f2281598e854df80f19aae4b92d7a11a"
@@ -4335,7 +4380,7 @@ source-map@^0.5.1, source-map@^0.5.3, source-map@^0.5.6:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
-source-map@^0.6.1, source-map@~0.6.1:
+source-map@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
 
@@ -4464,6 +4509,12 @@ string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.3:
     is-fullwidth-code-point "^3.0.0"
     strip-ansi "^6.0.1"
 
+string_decoder@^1.1.1:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.3.0.tgz#42f114594a46cf1a8e30b0a84f56c78c3edac21e"
+  dependencies:
+    safe-buffer "~5.2.0"
+
 string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
@@ -4551,7 +4602,7 @@ supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
 
-supports-color@^4.0.0, supports-color@^4.4.0:
+supports-color@^4.0.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.5.0.tgz#be7a0de484dec5c5cddf8b3d59125044912f635b"
   dependencies:
@@ -4653,6 +4704,12 @@ through2@^2.0.0, through2@^2.0.1, through2@~2.0.0:
     readable-stream "^2.1.5"
     xtend "~4.0.1"
 
+through2@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-4.0.2.tgz#a7ce3ac2a7a8b0b966c80e7c49f0484c3b239764"
+  dependencies:
+    readable-stream "3"
+
 tildify@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/tildify/-/tildify-1.2.0.tgz#dcec03f55dca9b7aa3e5b04f21817eb56e63588a"
@@ -4908,6 +4965,13 @@ unzip-response@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/unzip-response/-/unzip-response-1.0.2.tgz#b984f0877fc0a89c2c773cc1ef7b5b232b5b06fe"
 
+update-browserslist-db@^1.0.9:
+  version "1.0.10"
+  resolved "https://registry.yarnpkg.com/update-browserslist-db/-/update-browserslist-db-1.0.10.tgz#0f54b876545726f17d00cd9a2561e6dade943ff3"
+  dependencies:
+    escalade "^3.1.1"
+    picocolors "^1.0.0"
+
 urix@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
@@ -4936,7 +5000,7 @@ user-home@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/user-home/-/user-home-1.1.1.tgz#2b5be23a32b63a7c9deb8d0f28d485724a3df190"
 
-util-deprecate@~1.0.1:
+util-deprecate@^1.0.1, util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
 
@@ -5034,7 +5098,7 @@ vinyl-fs@^2.2.0:
     vali-date "^1.0.0"
     vinyl "^1.0.0"
 
-vinyl-sourcemaps-apply@^0.2.0:
+vinyl-sourcemaps-apply@^0.2.0, vinyl-sourcemaps-apply@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/vinyl-sourcemaps-apply/-/vinyl-sourcemaps-apply-0.2.1.tgz#ab6549d61d172c2b1b87be5c508d239c8ef87705"
   dependencies: