diff --git a/editor/_json-editor.scss b/editor/_json-editor.scss
new file mode 100644
index 0000000..7a62f51
--- /dev/null
+++ b/editor/_json-editor.scss
@@ -0,0 +1,72 @@
+.editor-container {
+  font-size: 14px;
+  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+  --gap: 8px;
+
+  h1 {}
+  h2 {}
+  h3 {}
+  p {
+    margin: 0 0 var(--gap) 0;
+  }
+  input[type=text],
+  input[type=email] {
+    padding: 2px 4px;
+  }
+  textarea {
+    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+    line-height: 1.3;
+    padding: var(--gap);
+  }
+
+  // override theme-default
+  .je-indented-panel {
+    padding-left: var(--gap);
+    margin-left: var(--gap);
+    border-left: 1px solid #ccc
+  }
+
+  .je-indented-panel--top {
+    padding-left: var(--gap);
+    margin-left: var(--gap);
+  }
+
+  .je-object__container {
+
+  }
+
+  .form-control {
+    margin-bottom: var(--gap);
+  }
+
+  .je-form-input-label {
+    display: block;
+    margin-bottom: calc(var(--gap) / 2);
+    font-weight: bold;
+  }
+  .je-form-input-description {
+    margin: 0;
+    font-size: 12px;
+    color: #999;
+  }
+  .je-child-editor-holder {
+    margin-bottom: var(--gap);
+  }
+  .je-header-button-holder {
+    display: inline-block;
+    margin-left: 10px;
+    font-size: 0.8em;
+    vertical-align: middle;
+  }
+  .je-table {
+    margin-bottom: 5px;
+    border-bottom: 1px solid #ccc;
+  }
+
+  .je-textarea {
+    height: 150px;
+    min-height: 150px;
+    max-height: 500px;
+    resize: vertical;
+  }
+}
diff --git a/editor/index.html b/editor/index.html
index 177fbf6..35c7cd8 100644
--- a/editor/index.html
+++ b/editor/index.html
@@ -11,9 +11,9 @@
   <h1>JSONCV Editor</h1>
 
   <div id="main">
-    <div class="left" id="editor-container"></div>
+    <div class="left editor-container"></div>
     <div class="right">
-      <div id="editor-toc"></div>
+      <div class="editor-toc"></div>
     </div>
   </div>
 
diff --git a/editor/main.js b/editor/main.js
index 9e113dc..6b43d1b 100644
--- a/editor/main.js
+++ b/editor/main.js
@@ -1,14 +1,17 @@
+import objectPath from 'object-path';
+
 import { JSONEditor } from '@json-editor/json-editor/dist/jsoneditor';
 
 import * as exampleData from '../sample.resume.json';
 import * as jsoncvSchema from '../schema/jsoncv.schema.json';
+import { registerTheme } from './theme';
 import { createElement } from './utils';
 
 const propertiesInOrder = ['basics', 'education', 'work', 'skills', 'projects', 'languages', 'interests', 'references', 'awards', 'publications', 'volunteer']
 const basicsPropertiesInOrder = ['name', 'label', 'email', 'phone', 'url', 'summary', 'image', 'location', 'profiles']
 
 // toc elements
-const elToc = document.querySelector('#editor-toc')
+const elToc = document.querySelector('.editor-toc')
 const tocUl = createElement('ul', {
   parent: elToc
 })
@@ -47,10 +50,20 @@ basicsPropertiesInOrder.forEach((name, index) => {
   })
 })
 
+// add format to schema
+const keyFormatMap = {
+  'basics.properties.summary': 'textarea',
+}
+for (const [key, format] of Object.entries(keyFormatMap)) {
+  objectPath.get(jsoncvSchema.properties, key).format = format
+}
+
 // initialize editor
-const elEditorContainer = document.querySelector('#editor-container')
+registerTheme(JSONEditor)
+const elEditorContainer = document.querySelector('.editor-container')
 const editor = new JSONEditor(elEditorContainer, {
   schema: jsoncvSchema,
+  theme: 'mytheme',
 });
 editor.on('ready',() => {
   editor.setValue(exampleData)
diff --git a/editor/styles.scss b/editor/styles.scss
index ab45113..da39492 100644
--- a/editor/styles.scss
+++ b/editor/styles.scss
@@ -1,21 +1,24 @@
+@use 'json-editor';
+
 #main {
   display: flex;
 
   .left {
     flex-grow: 1;
+    padding-right: 16px;
   }
   .right {
     width: 300px;
   }
 }
 
-#editor-container {
+.editor-container {
   [data-schemapath]:target {
     animation: bgFade 2s forwards;
   }
 }
 
-#editor-toc {
+.editor-toc {
   position: fixed;
 }
 
diff --git a/editor/theme.js b/editor/theme.js
new file mode 100644
index 0000000..8aa0385
--- /dev/null
+++ b/editor/theme.js
@@ -0,0 +1,71 @@
+import { AbstractTheme } from '@json-editor/json-editor/src/theme.js';
+
+export class MyTheme extends AbstractTheme {
+  getFormInputLabel (text, req) {
+    const el = super.getFormInputLabel(text, req)
+    el.classList.add('je-form-input-label')
+    return el
+  }
+
+  getFormInputDescription (text) {
+    const el = super.getFormInputDescription(text)
+    el.classList.add('je-form-input-description')
+    return el
+  }
+
+  getIndentedPanel () {
+    const el = super.getIndentedPanel()
+    el.classList.add('je-indented-panel')
+    return el
+  }
+
+  getTopIndentedPanel () {
+    return this.getIndentedPanel()
+  }
+
+  getChildEditorHolder () {
+    const el = super.getChildEditorHolder()
+    el.classList.add('je-child-editor-holder')
+    return el
+  }
+
+  getHeaderButtonHolder () {
+    const el = this.getButtonHolder()
+    el.classList.add('je-header-button-holder')
+    return el
+  }
+
+  getTable () {
+    const el = super.getTable()
+    el.classList.add('je-table')
+    return el
+  }
+
+  addInputError (input, text) {
+    const group = this.closest(input, '.form-control') || input.controlgroup
+
+    if (!input.errmsg) {
+      input.errmsg = document.createElement('div')
+      input.errmsg.setAttribute('class', 'errmsg')
+      input.errmsg.style = input.errmsg.style || {}
+      input.errmsg.style.color = 'red'
+      group.appendChild(input.errmsg)
+    } else {
+      input.errmsg.style.display = 'block'
+    }
+
+    input.errmsg.innerHTML = ''
+    input.errmsg.appendChild(document.createTextNode(text))
+  }
+
+  removeInputError (input) {
+    if (input.style) {
+      input.style.borderColor = ''
+    }
+    if (input.errmsg) input.errmsg.style.display = 'none'
+  }
+}
+
+export function registerTheme(JSONEditor) {
+  JSONEditor.defaults.themes['mytheme'] = MyTheme
+}