diff --git a/package.json b/package.json
index e2b924c..ba83fd6 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,7 @@
     "@tailwindcss/forms": "^0.3.2",
     "@tailwindcss/line-clamp": "^0.2.0",
     "@tailwindcss/typography": "^0.4.0",
+    "autoprefixer": "^10.3.7",
     "core-js": "^3.6.5",
     "modern-normalize": "^1.1.0",
     "nanoid": "^3.1.22",
diff --git a/src/observer.js b/src/observer.js
index 0d43d08..8b5433c 100644
--- a/src/observer.js
+++ b/src/observer.js
@@ -2,6 +2,7 @@ import parseCustomConfig from "./parseCustomConfig";
 import { VIRTUAL_SOURCE_PATH, VIRTUAL_HTML_FILENAME } from "./constants";
 import tailwindcss from "tailwindcss";
 import postcss from "postcss";
+import autoprefixer from "autoprefixer";
 import { nanoid } from "nanoid";
 
 const tailwindId = nanoid();
@@ -22,7 +23,7 @@ export default (force = false) => {
 
     let defaultConfig = {
       mode: "jit",
-      purge: [VIRTUAL_HTML_FILENAME],
+      purge: [],
       theme: {},
       plugins: [
         require("@tailwindcss/forms"), 
@@ -32,13 +33,21 @@ export default (force = false) => {
       ],
     };
 
+    const combinedConfig = {
+      ...defaultConfig,
+      ...userConfig
+    }
+
+    combinedConfig.purge.push(VIRTUAL_HTML_FILENAME)
+
     let customCss = '';
     document.querySelectorAll('style[type="postcss"]').forEach(styleTag => {
       customCss += styleTag.innerHTML;
     })
 
     const result = await postcss([
-      tailwindcss({ ...defaultConfig, ...userConfig }),
+      tailwindcss(combinedConfig),
+      autoprefixer({})
     ]).process(
       `
       @tailwind base;
diff --git a/yarn.lock b/yarn.lock
index eb5bb4d..4399740 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1763,6 +1763,18 @@ atob@^2.1.2:
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
   integrity sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==
 
+autoprefixer@^10.3.7:
+  version "10.3.7"
+  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-10.3.7.tgz#cef2562058406bd378c94aacda36bb46a97b3186"
+  integrity sha512-EmGpu0nnQVmMhX8ROoJ7Mx8mKYPlcUHuxkwrRYEYMz85lu7H09v8w6R1P0JPdn/hKU32GjpLBFEOuIlDWCRWvg==
+  dependencies:
+    browserslist "^4.17.3"
+    caniuse-lite "^1.0.30001264"
+    fraction.js "^4.1.1"
+    normalize-range "^0.1.2"
+    picocolors "^0.2.1"
+    postcss-value-parser "^4.1.0"
+
 autoprefixer@^9.8.0:
   version "9.8.6"
   resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-9.8.6.tgz#3b73594ca1bf9266320c5acf1588d74dea74210f"
@@ -2067,6 +2079,17 @@ browserslist@^4.0.0, browserslist@^4.12.0, browserslist@^4.14.5, browserslist@^4
     escalade "^3.1.1"
     node-releases "^1.1.71"
 
+browserslist@^4.17.3:
+  version "4.17.4"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.17.4.tgz#72e2508af2a403aec0a49847ef31bd823c57ead4"
+  integrity sha512-Zg7RpbZpIJRW3am9Lyckue7PLytvVxxhJj1CaJVlCWENsGEAOlnlt8X0ZxGRPp7Bt9o8tIRM5SEXy4BCPMJjLQ==
+  dependencies:
+    caniuse-lite "^1.0.30001265"
+    electron-to-chromium "^1.3.867"
+    escalade "^3.1.1"
+    node-releases "^2.0.0"
+    picocolors "^1.0.0"
+
 buffer-from@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
@@ -2258,6 +2281,11 @@ caniuse-lite@^1.0.0, caniuse-lite@^1.0.30001109, caniuse-lite@^1.0.30001219:
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001228.tgz#bfdc5942cd3326fa51ee0b42fbef4da9d492a7fa"
   integrity sha512-QQmLOGJ3DEgokHbMSA8cj2a+geXqmnpyOFT0lhQV6P3/YOJvGDEwoedcwxEQ30gJIwIIunHIicunJ2rzK5gB2A==
 
+caniuse-lite@^1.0.30001264, caniuse-lite@^1.0.30001265:
+  version "1.0.30001265"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001265.tgz#0613c9e6c922e422792e6fcefdf9a3afeee4f8c3"
+  integrity sha512-YzBnspggWV5hep1m9Z6sZVLOt7vrju8xWooFAgN6BA5qvy98qPAPb7vNUzypFaoh2pb3vlfzbDO8tB57UPGbtw==
+
 case-sensitive-paths-webpack-plugin@^2.3.0:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/case-sensitive-paths-webpack-plugin/-/case-sensitive-paths-webpack-plugin-2.4.0.tgz#db64066c6422eed2e08cc14b986ca43796dbc6d4"
@@ -3269,6 +3297,11 @@ electron-to-chromium@^1.3.723:
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.727.tgz#857e310ca00f0b75da4e1db6ff0e073cc4a91ddf"
   integrity sha512-Mfz4FIB4FSvEwBpDfdipRIrwd6uo8gUDoRDF4QEYb4h4tSuI3ov594OrjU6on042UlFHouIJpClDODGkPcBSbg==
 
+electron-to-chromium@^1.3.867:
+  version "1.3.867"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.867.tgz#7cb484db4b57c28da0b65c51e434c3a1f3f9aa0d"
+  integrity sha512-WbTXOv7hsLhjJyl7jBfDkioaY++iVVZomZ4dU6TMe/SzucV6mUAs2VZn/AehBwuZMiNEQDaPuTGn22YK5o+aDw==
+
 elliptic@^6.5.3:
   version "6.5.4"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.4.tgz#da37cebd31e79a1367e941b592ed1fbebd58abbb"
@@ -3934,6 +3967,11 @@ forwarded@~0.1.2:
   resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.2.tgz#98c23dab1175657b8c0573e8ceccd91b0ff18c84"
   integrity sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ=
 
+fraction.js@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/fraction.js/-/fraction.js-4.1.1.tgz#ac4e520473dae67012d618aab91eda09bcb400ff"
+  integrity sha512-MHOhvvxHTfRFpF1geTK9czMIZ6xclsEor2wkIGYYq+PxcQqT7vStJqjhe6S1TenZrMZzo+wlqOufBDVepUEgPg==
+
 fragment-cache@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/fragment-cache/-/fragment-cache-0.2.1.tgz#4290fad27f13e89be7f33799c6bc5a0abfff0d19"
@@ -5740,6 +5778,11 @@ node-releases@^1.1.71:
   resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.72.tgz#14802ab6b1039a79a0c7d662b610a5bbd76eacbe"
   integrity sha512-LLUo+PpH3dU6XizX3iVoubUNheF/owjXCZZ5yACDxNnPtgFuludV1ZL3ayK1kVep42Rmm0+R9/Y60NQbZ2bifw==
 
+node-releases@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-2.0.0.tgz#67dc74903100a7deb044037b8a2e5f453bb05400"
+  integrity sha512-aA87l0flFYMzCHpTM3DERFSYxc6lv/BltdbRTOMZuxZ0cwZCD3mejE5n9vLhSJCN++/eOqr77G1IO5uXxlQYWA==
+
 normalize-package-data@^2.5.0:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.5.0.tgz#e66db1838b200c1dfc233225d12cb36520e234a8"
@@ -6230,6 +6273,16 @@ performance-now@^2.1.0:
   resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
   integrity sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns=
 
+picocolors@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/picocolors/-/picocolors-0.2.1.tgz#570670f793646851d1ba135996962abad587859f"
+  integrity sha512-cMlDqaLEqfSaW8Z7N5Jw+lyIW869EzT73/F5lhtY9cLGoVxSXznfgfXMO0Z5K0o0Q2TkTXq+0KFsdnSe3jDViA==
+
+picocolors@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/picocolors/-/picocolors-1.0.0.tgz#cb5bdc74ff3f51892236eaf79d68bc44564ab81c"
+  integrity sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==
+
 picomatch@^2.0.4, picomatch@^2.2.1, picomatch@^2.2.3:
   version "2.2.3"
   resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.2.3.tgz#465547f359ccc206d3c48e46a1bcb89bf7ee619d"