diff --git a/.babelrc b/.babelrc
new file mode 100644
index 00000000..e5656bd4
--- /dev/null
+++ b/.babelrc
@@ -0,0 +1,32 @@
+{
+  "presets": [
+    [
+      "@babel/preset-typescript",
+      {
+        "jsxPragma": "h"
+      }
+    ]
+  ],
+  "plugins": [
+    [
+      "@babel/plugin-transform-react-jsx",
+      {
+        "loose": true,
+        "pragma": "h",
+        "pragmaFrag": "Fragment"
+      }
+    ],
+    [
+      "@babel/plugin-proposal-decorators",
+      {
+        "legacy": true
+      }
+    ],
+    [
+      "@babel/plugin-proposal-class-properties",
+      {
+        "loose": true
+      }
+    ]
+  ]
+}
diff --git a/global.d.ts b/global.d.ts
index 0f8de726..b518c01f 100644
--- a/global.d.ts
+++ b/global.d.ts
@@ -1,6 +1,3 @@
-declare const __webpack_public_path__: string;
-declare const PRERENDER: boolean;
-
 declare interface NodeModule {
   hot: any;
 }
diff --git a/package.json b/package.json
index 57dd2a34..8e179e19 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,7 @@
       "pre-commit": "npm run lint"
     }
   },
+  "browserslist": ">0.25%, not IE 11, not op_mini all",
   "postcss": {
     "modules": true,
     "plugins": {
diff --git a/tsconfig.json b/tsconfig.json
index 9b77b843..82b2dec7 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,6 +6,7 @@
     "module": "esnext",
     "moduleResolution": "node",
     "experimentalDecorators": true,
+    "allowSyntheticDefaultImports": true,
     "noUnusedLocals": true,
     "sourceMap": true,
     "jsx": "react",