diff --git a/.postcssrc b/.postcssrc
new file mode 100644
index 0000000..fc77f93
--- /dev/null
+++ b/.postcssrc
@@ -0,0 +1,12 @@
+{
+  "plugins": {
+    "autoprefixer": {
+      "browsers": [
+        ">1%",
+        "last 4 versions",
+        "Firefox ESR",
+        "not ie < 9"
+      ]
+    }
+  }
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 08215e6..1033c9e 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,7 @@
     "bundle": "parcel build index.html"
   },
   "devDependencies": {
+    "autoprefixer": "^9.5.1",
     "parcel-bundler": "^1.12.3",
     "sass": "^1.19.0"
   },
diff --git a/yarn.lock b/yarn.lock
index 961a775..645f4f0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -943,6 +943,18 @@ 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:
+  version "9.5.1"
+  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.5.1.tgz#243b1267b67e7e947f28919d786b50d3bb0fb357"
+  integrity sha512-KJSzkStUl3wP0D5sdMlP82Q52JLy5+atf2MHAre48+ckWkXgixmfHyWmA77wFDy6jTHU6mIgXv6hAQ2mf1PjJQ==
+  dependencies:
+    browserslist "^4.5.4"
+    caniuse-lite "^1.0.30000957"
+    normalize-range "^0.1.2"
+    num2fraction "^1.2.2"
+    postcss "^7.0.14"
+    postcss-value-parser "^3.3.1"
+
 aws-sign2@~0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
@@ -1133,7 +1145,7 @@ browserify-zlib@^0.2.0:
   dependencies:
     pako "~1.0.5"
 
-browserslist@^4.0.0, browserslist@^4.1.0, browserslist@^4.3.4:
+browserslist@^4.0.0, browserslist@^4.1.0, browserslist@^4.3.4, browserslist@^4.5.4:
   version "4.5.6"
   resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.5.6.tgz#ea42e8581ca2513fa7f371d4dd66da763938163d"
   integrity sha512-o/hPOtbU9oX507lIqon+UvPYqpx3mHc8cV3QemSBTXwkG8gSQSK6UKvXcE/DcleU3+A59XTUHyCvZ5qGy8xVAg==
@@ -1225,6 +1237,11 @@ caniuse-lite@^1.0.0, caniuse-lite@^1.0.30000963:
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000963.tgz#5be481d5292f22aff5ee0db4a6c049b65b5798b1"
   integrity sha512-n4HUiullc7Lw0LyzpeLa2ffP8KxFBGdxqD/8G3bSL6oB758hZ2UE2CVK+tQN958tJIi0/tfpjAc67aAtoHgnrQ==
 
+caniuse-lite@^1.0.30000957:
+  version "1.0.30000967"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000967.tgz#a5039577806fccee80a04aaafb2c0890b1ee2f73"
+  integrity sha512-rUBIbap+VJfxTzrM4akJ00lkvVb5/n5v3EGXfWzSH5zT8aJmGzjA8HWhJ4U6kCpzxozUSnB+yvAYDRPY6mRpgQ==
+
 caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
@@ -3296,6 +3313,11 @@ normalize-path@^3.0.0:
   resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-3.0.0.tgz#0dcd69ff23a1c9b11fd0978316644a0388216a65"
   integrity sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==
 
+normalize-range@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/normalize-range/-/normalize-range-0.1.2.tgz#2d10c06bdfd312ea9777695a4d28439456b75942"
+  integrity sha1-LRDAa9/TEuqXd2laTShDlFa3WUI=
+
 normalize-url@^3.0.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-3.3.0.tgz#b2e1c4dc4f7c6d57743df733a4f5978d18650559"
@@ -3336,6 +3358,11 @@ nth-check@^1.0.2:
   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"
+  integrity sha1-b2gragJ6Tp3fpFZM0lidHU5mnt4=
+
 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"
@@ -3975,6 +4002,15 @@ postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.11, postcss@^7.0.5:
     source-map "^0.6.1"
     supports-color "^6.1.0"
 
+postcss@^7.0.14:
+  version "7.0.16"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.16.tgz#48f64f1b4b558cb8b52c88987724359acb010da2"
+  integrity sha512-MOo8zNSlIqh22Uaa3drkdIAgUGEL+AD1ESiSdmElLUmE2uVDo1QloiT/IfW9qRw8Gw+Y/w69UVMGwbufMSftxA==
+  dependencies:
+    chalk "^2.4.2"
+    source-map "^0.6.1"
+    supports-color "^6.1.0"
+
 posthtml-parser@^0.3.3:
   version "0.3.3"
   resolved "https://registry.yarnpkg.com/posthtml-parser/-/posthtml-parser-0.3.3.tgz#3fe986fca9f00c0f109d731ba590b192f26e776d"