diff --git a/make-webpack-config.js b/make-webpack-config.js
index 2a6ed131..2eeb9bf9 100644
--- a/make-webpack-config.js
+++ b/make-webpack-config.js
@@ -61,7 +61,6 @@ module.exports = function(rules, options) {
   }
 
   if( specialOptions.minimize ) {
-
     plugins.push(
       new webpack.optimize.UglifyJsPlugin({
         sourceMap: true,
diff --git a/package.json b/package.json
index 4b754ce7..3e0465d7 100644
--- a/package.json
+++ b/package.json
@@ -109,7 +109,6 @@
     "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 f805c8bf..27a26046 100644
--- a/webpack-dist-bundle.config.js
+++ b/webpack-dist-bundle.config.js
@@ -1,64 +1,32 @@
-var path = require('path')
-var rules = [
+const path = require("path")
+const styleRules = require("./webpack.dist-style.config.js")
+
+let rules = [
   { test: /\.(worker\.js)(\?.*)?$/,
     use: [
       {
-        loader: 'worker-loader',
+        loader: "worker-loader",
         options: {
           inline: true,
-          name: '[name].js'
-        }
-      },
-      { loader: 'babel-loader' }
-    ]
-  },
-  { test: /\.(css)(\?.*)?$/,
-    use: [
-      'style-loader',
-      'css-loader',
-      'postcss-loader'
-    ]
-  },
-  { test: /\.(scss)(\?.*)?$/,
-    use: [
-      'style-loader',
-      'css-loader',
-      {
-        loader: 'postcss-loader',
-        options: { sourceMap: true }
-      },
-      { loader: 'sass-loader',
-        options: {
-          outputStyle: 'expanded',
-          sourceMap: true,
-          sourceMapContents: 'true'
+          name: "[name].js"
         }
-      }
-    ]
-  },
-  { test: /\.(less)(\?.*)?$/,
-    use: [
-      'style-loader',
-      'css-loader',
-      {
-        loader: 'postcss-loader',
       },
-      'less-loader'
+      { loader: "babel-loader" }
     ]
   }
 ]
 
-module.exports = require('./make-webpack-config.js')(rules, {
+module.exports = require("./make-webpack-config.js")(rules, {
   _special: {
-    separateStylesheets: false,
+    separateStylesheets: true,
     minimize: true,
     sourcemaps: true,
   },
 
   entry: {
-    'swagger-ui-bundle': [
-      './src/polyfills',
-      './src/core/index.js'
+    "swagger-ui-bundle": [
+      "./src/polyfills",
+      "./src/core/index.js"
     ]
   },
 
diff --git a/webpack-dist-standalone.config.js b/webpack-dist-standalone.config.js
index 66469098..e19f428b 100644
--- a/webpack-dist-standalone.config.js
+++ b/webpack-dist-standalone.config.js
@@ -1,65 +1,32 @@
-var path = require('path')
+const path = require("path")
+const styleRules = require("./webpack.dist-style.config.js")
 
-var rules = [
+let rules = [
   { test: /\.(worker\.js)(\?.*)?$/,
     use: [
       {
-        loader: 'worker-loader',
+        loader: "worker-loader",
         options: {
           inline: true,
-          name: '[name].js'
+          name: "[name].js"
         }
       },
-      { loader: 'babel-loader' }
-    ]
-  },
-  { test: /\.(css)(\?.*)?$/,
-    use: [
-      'style-loader',
-      'css-loader',
-      'postcss-loader'
-    ]
-  },
-  { test: /\.(scss)(\?.*)?$/,
-    use: [
-      'style-loader',
-      'css-loader',
-      {
-        loader: 'postcss-loader',
-        options: { sourceMap: true }
-      },
-      { loader: 'sass-loader',
-        options: {
-          outputStyle: 'expanded',
-          sourceMap: true,
-          sourceMapContents: 'true'
-        }
-      }
-    ]
-  },
-  { test: /\.(less)(\?.*)?$/,
-    use: [
-      'style-loader',
-      'css-loader',
-      {
-        loader: 'postcss-loader',
-      },
-      'less-loader'
+      { loader: "babel-loader" }
     ]
   }
 ]
 
-module.exports = require('./make-webpack-config.js')(rules, {
+module.exports = require("./make-webpack-config.js")(rules, {
   _special: {
-    separateStylesheets: false,
+    separateStylesheets: true,
     minimize: true,
     sourcemaps: true,
   },
 
   entry: {
-    'swagger-ui-standalone-preset': [
-      './src/polyfills',
-      './src/standalone/index.js'
+    "swagger-ui-standalone-preset": [
+      "./src/polyfills",
+      "./src/standalone/index.js"
     ]
   },
 
diff --git a/webpack-dist.config.js b/webpack-dist.config.js
index b2e730dc..3aa65ed2 100644
--- a/webpack-dist.config.js
+++ b/webpack-dist.config.js
@@ -1,66 +1,25 @@
-var path = require('path')
-var fs = require('fs')
+const path = require("path")
+const fs = require("fs")
 const nodeModules = fs.readdirSync("node_modules").filter(function(x) { return x !== ".bin" })
-var ExtractTextPlugin = require('extract-text-webpack-plugin')
+const styleRules = require("./webpack.dist-style.config.js")
 
-var rules = [
+let rules = [
   { test: /\.(worker\.js)(\?.*)?$/,
     use: [
       {
-        loader: 'worker-loader',
+        loader: "worker-loader",
         options: {
           inline: true,
-          name: '[name].js'
+          name: "[name].js"
         }
       },
-      { loader: 'babel-loader' }
+      { loader: "babel-loader" }
     ]
-  },
-  { test: /\.(css)(\?.*)?$/,
-    use: ExtractTextPlugin.extract({
-      fallback: 'style-loader',
-      use: [
-        'css-loader',
-        'postcss-loader'
-      ]
-    })
-  },
-  { test: /\.(scss)(\?.*)?$/,
-    use: ExtractTextPlugin.extract({
-      fallback: 'style-loader',
-      use: [
-        {
-          loader: 'css-loader',
-          options: { minimize: true }
-        },
-        {
-          loader: 'postcss-loader',
-          options: { sourceMap: true }
-        },
-        { loader: 'sass-loader',
-          options: {
-            outputStyle: 'expanded',
-            sourceMap: true,
-            sourceMapContents: 'true'
-          }
-        }
-      ]
-    })
-  },
-  { test: /\.(less)(\?.*)?$/,
-    use: ExtractTextPlugin.extract({
-      fallback: 'style-loader',
-      use: ['css-loader',
-        {
-          loader: 'postcss-loader',
-        },
-        'less-loader'
-      ]
-    })
   }
 ]
+rules = rules.concat(styleRules)
 
-module.exports = require('./make-webpack-config.js')(rules, {
+module.exports = require("./make-webpack-config.js")(rules, {
   _special: {
     separateStylesheets: true,
     minimize: true,
diff --git a/webpack-hot-dev-server.config.js b/webpack-hot-dev-server.config.js
index cb8e4b70..e002628f 100644
--- a/webpack-hot-dev-server.config.js
+++ b/webpack-hot-dev-server.config.js
@@ -1,56 +1,46 @@
-var path = require('path')
+const path = require("path")
 
-var rules = [
+const rules = [
   { test: /\.(worker\.js)(\?.*)?$/,
     use: [
       {
-        loader: 'worker-loader',
+        loader: "worker-loader",
         options: {
           inline: true
         }
       },
-      { loader: 'babel-loader' }
+      { loader: "babel-loader" }
     ]
   },
   { test: /\.(jsx)(\?.*)?$/,
     use: [
-      { loader: 'react-hot-loader' }, 
-      { loader: 'babel-loader' }
+      { loader: "react-hot-loader" }, 
+      { loader: "babel-loader" }
     ]
   },
   { test: /\.(css)(\?.*)?$/,
     use: [
-      'style-loader',
-      'css-loader',
-      'postcss-loader'
+      "style-loader",
+      "css-loader",
+      "postcss-loader"
     ]
   },
   { test: /\.(scss)(\?.*)?$/,
     use: [
-      'style-loader',
-      'css-loader',
+      "style-loader",
+      "css-loader",
       {
-        loader: 'postcss-loader',
+        loader: "postcss-loader",
         options: { sourceMap: true }
       },
-      { loader: 'sass-loader',
+      { loader: "sass-loader",
         options: {
-          outputStyle: 'expanded',
+          outputStyle: "expanded",
           sourceMap: true,
-          sourceMapContents: 'true'
+          sourceMapContents: "true"
         }
       }
     ]
-  },
-  { test: /\.(less)(\?.*)?$/,
-    use: [
-      'style-loader',
-      'css-loader',
-      {
-        loader: 'postcss-loader',
-      },
-      'less-loader'
-    ]
   }
 ]
 
@@ -60,25 +50,26 @@ module.exports = require("./make-webpack-config")(rules, {
   },
 	devtool: "eval",
   entry: {
-    'swagger-ui-bundle': [
-      './src/polyfills',
-      './src/core/index.js'
+    "swagger-ui-bundle": [
+      "./src/polyfills",
+      "./src/core/index.js"
     ],
-    'swagger-ui-standalone-preset': [
-      './src/polyfills',
-      './src/standalone/index.js',
+    "swagger-ui-standalone-preset": [
+      "./src/style/main.scss",
+      "./src/polyfills",
+      "./src/standalone/index.js",
     ]
   },
   output: {
     pathinfo: true,
-    filename: '[name].js',
+    filename: "[name].js",
     library: "[name]",
     libraryTarget: "umd",
     chunkFilename: "[id].js"
   },
   devServer: {
     port: 3200,
-    contentBase: path.join(__dirname, 'dev-helpers'),
+    contentBase: path.join(__dirname, "dev-helpers"),
     publicPath: "/",
     noInfo: true,
     hot: true,
diff --git a/webpack-watch.config.js b/webpack-watch.config.js
index 4406b0aa..ed5c711c 100644
--- a/webpack-watch.config.js
+++ b/webpack-watch.config.js
@@ -1,3 +1,3 @@
-var config = require("./webpack-dist.config.js")
+const config = require("./webpack-dist.config.js")
 
 module.exports = config
diff --git a/webpack.check.js b/webpack.check.js
index 02a47376..6f10188b 100644
--- a/webpack.check.js
+++ b/webpack.check.js
@@ -1,8 +1,7 @@
-const webpack = require('webpack')
-const path = require('path')
-const deepMerge = require('deepmerge')
-const webpackConfig = require('./webpack-dist-bundle.config.js')
-const DEPS_CHECK_DIR = require('./package.json').config.deps_check_dir
+const path = require("path")
+const deepMerge = require("deepmerge")
+const webpackConfig = require("./webpack-dist-bundle.config.js")
+const DEPS_CHECK_DIR = require("./package.json").config.deps_check_dir
 
 module.exports = deepMerge(
   webpackConfig, {
diff --git a/webpack.config.js b/webpack.config.js
index 0d22493e..f0ca3601 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -1,3 +1,3 @@
 module.exports = require("./make-webpack-config")({
 
-});
\ No newline at end of file
+})
\ No newline at end of file
diff --git a/webpack.dist-style.config.js b/webpack.dist-style.config.js
new file mode 100644
index 00000000..2b36430a
--- /dev/null
+++ b/webpack.dist-style.config.js
@@ -0,0 +1,34 @@
+const ExtractTextPlugin = require("extract-text-webpack-plugin")
+
+module.exports = [{ 
+  test: /\.(css)(\?.*)?$/,
+  use: ExtractTextPlugin.extract({
+    fallback: "style-loader",
+    use: [
+      "css-loader",
+      "postcss-loader"
+    ]
+  })
+},
+{ test: /\.(scss)(\?.*)?$/,
+  use: ExtractTextPlugin.extract({
+    fallback: "style-loader",
+    use: [
+      {
+        loader: "css-loader",
+        options: { minimize: true }
+      },
+      {
+        loader: "postcss-loader",
+        options: { sourceMap: true }
+      },
+      { loader: "sass-loader",
+        options: {
+          outputStyle: "expanded",
+          sourceMap: true,
+          sourceMapContents: "true"
+        }
+      }
+    ]
+  })
+}]
\ No newline at end of file