diff --git a/package.json b/package.json
index 895e22dd..5ad9552f 100644
--- a/package.json
+++ b/package.json
@@ -108,7 +108,6 @@
     "karma-sourcemap-loader": "^0.3.7",
     "karma-webpack": "2.0.3",
     "less": "2.7.2",
-    "less-loader": "4.0.4",
     "license-checker": "^11.0.0",
     "mocha": "^3.4.2",
     "node-sass": "^4.5.0",
diff --git a/src/core/plugins/split-pane-mode/components/split-pane-mode.jsx b/src/core/plugins/split-pane-mode/components/split-pane-mode.jsx
index 73f2acbc..c1a8fa9c 100644
--- a/src/core/plugins/split-pane-mode/components/split-pane-mode.jsx
+++ b/src/core/plugins/split-pane-mode/components/split-pane-mode.jsx
@@ -1,7 +1,6 @@
 import React from "react"
 import PropTypes from "prop-types"
 import SplitPane from "react-split-pane"
-import "./split-pane-mode.less"
 
 const MODE_KEY = ["split-pane-mode"]
 const MODE_LEFT = "left"
diff --git a/src/core/plugins/split-pane-mode/components/split-pane-mode.less b/src/core/plugins/split-pane-mode/components/split-pane-mode.less
deleted file mode 100644
index d5437b37..00000000
--- a/src/core/plugins/split-pane-mode/components/split-pane-mode.less
+++ /dev/null
@@ -1,5 +0,0 @@
-.swagger-ui {
-  .Resizer.vertical.disabled {
-    display: none;
-  }
-}
diff --git a/src/plugins/topbar/topbar.less b/src/plugins/topbar/topbar.less
deleted file mode 100644
index 9818940b..00000000
--- a/src/plugins/topbar/topbar.less
+++ /dev/null
@@ -1,52 +0,0 @@
-.swagger-ui {
-  .topbar {
-    background-color: #89bf04;
-  }
-
-  .topbar-wrapper {
-    padding: 0.7em;
-  }
-
-  .topbar-logo__img {
-    float: left;
-  }
-
-  .topbar-logo__title {
-    display: inline-block;
-    color: #fff;
-    font-size: 1.5em;
-    font-weight: bold;
-    margin: 0.15em 0 0 0.5em;
-  }
-
-  .download-url-wrapper {
-    text-align: right;
-    float: right;
-  }
-
-  .topbar .download-url__text {
-    width: 28em;
-    height: 2em;
-    margin-right: 0.5em;
-  }
-
-  .download-url__btn {
-    background-color: #547f00;
-    border-color: #547f00;
-    text-decoration: none;
-    font-weight: bold;
-    padding: 0.2em 0.3em;
-    color: white;
-    border-radius: 0.1em;
-
-    &:hover {
-      &:extend(.download-url__btn);
-    }
-  }
-
-  .center-700 {
-    display: block;
-    margin: 0 auto;
-    width: 45em;
-  }
-}
diff --git a/src/standalone/index.js b/src/standalone/index.js
index 6616a744..40e9a50c 100644
--- a/src/standalone/index.js
+++ b/src/standalone/index.js
@@ -1,6 +1,4 @@
 import StandaloneLayout from "./layout"
-import "../style/main.scss"
-
 import TopbarPlugin from "plugins/topbar"
 import ConfigsPlugin from "plugins/configs"
 
diff --git a/src/style/_split-pane-mode.scss b/src/style/_split-pane-mode.scss
new file mode 100644
index 00000000..4a53d4c6
--- /dev/null
+++ b/src/style/_split-pane-mode.scss
@@ -0,0 +1,3 @@
+.Resizer.vertical.disabled {
+  display: none;
+}
\ No newline at end of file
diff --git a/src/style/main.scss b/src/style/main.scss
index f6ff00fb..443cc37c 100644
--- a/src/style/main.scss
+++ b/src/style/main.scss
@@ -14,4 +14,5 @@
     @import 'information';
     @import 'authorize';
     @import 'errors';
+    @import 'split-pane-mode';
 }
diff --git a/webpack-dist-bundle.config.js b/webpack-dist-bundle.config.js
index f876d0ef..27a26046 100644
--- a/webpack-dist-bundle.config.js
+++ b/webpack-dist-bundle.config.js
@@ -15,7 +15,6 @@ let rules = [
     ]
   }
 ]
-rules = rules.concat(styleRules)
 
 module.exports = require("./make-webpack-config.js")(rules, {
   _special: {
diff --git a/webpack-dist-standalone.config.js b/webpack-dist-standalone.config.js
index 65aa1839..e19f428b 100644
--- a/webpack-dist-standalone.config.js
+++ b/webpack-dist-standalone.config.js
@@ -15,7 +15,6 @@ let rules = [
     ]
   }
 ]
-rules = rules.concat(styleRules)
 
 module.exports = require("./make-webpack-config.js")(rules, {
   _special: {
diff --git a/webpack-hot-dev-server.config.js b/webpack-hot-dev-server.config.js
index 3e61628b..c964de7e 100644
--- a/webpack-hot-dev-server.config.js
+++ b/webpack-hot-dev-server.config.js
@@ -41,16 +41,6 @@ const rules = [
         }
       }
     ]
-  },
-  { test: /\.(less)(\?.*)?$/,
-    use: [
-      "style-loader",
-      "css-loader",
-      {
-        loader: "postcss-loader",
-      },
-      "less-loader"
-    ]
   }
 ]
 
diff --git a/webpack.dist-style.config.js b/webpack.dist-style.config.js
index 1a3424fd..2b36430a 100644
--- a/webpack.dist-style.config.js
+++ b/webpack.dist-style.config.js
@@ -31,15 +31,4 @@ module.exports = [{
       }
     ]
   })
-},
-{ test: /\.(less)(\?.*)?$/,
-  use: ExtractTextPlugin.extract({
-    fallback: "style-loader",
-    use: ["css-loader",
-      {
-        loader: "postcss-loader",
-      },
-      "less-loader"
-    ]
-  })
 }]
\ No newline at end of file