implement minimun splitEditor

browser/components/MarkdownSplitEditor.js

@@ -0,0 +1,21 @@
+import React from 'react'
+
+import styles from './MarkdownSplitEditor.styl'
+import CSSModules from 'browser/lib/CSSModules'
+
+class MarkdownSplitEditor extends React.Component {
+  render () {
+    return (
+      <div styleName='root'>
+        <div styleName='editor'>
+          <p>editor</p>
+        </div>
+        <div styleName='preview'>
+          <p>preview</p>
+        </div>
+      </div>
+    )
+  }
+}
+
+export default CSSModules(MarkdownSplitEditor, styles)

browser/components/MarkdownSplitEditor.styl

@@ -0,0 +1,9 @@
+.root
+  width 100%
+  height 100%
+  font-size 30px
+  display flex
+  .editor
+    width 50%
+  .preview
+    width 50%