diff --git a/src/userscript-metadata-block.ts b/src/userscript-metadata-block.ts
index 9360cf22..785e081e 100644
--- a/src/userscript-metadata-block.ts
+++ b/src/userscript-metadata-block.ts
@@ -9,7 +9,8 @@ export default `// ==UserScript==
 // @updateURL https://github.com/disjukr/just-news/raw/release/dist/just-news.user.js
 // @downloadURL https://github.com/disjukr/just-news/raw/release/dist/just-news.user.js
 // @copyright 2014 JongChan Choi
-// @grant none
+// @grant GM.setValue
+// @grant GM.getValue
 // @run-at document-start
 ${
     Object.keys(sites).map(
diff --git a/src/view/Article.tsx b/src/view/Article.tsx
index e4ec4b7c..2ba88373 100644
--- a/src/view/Article.tsx
+++ b/src/view/Article.tsx
@@ -3,6 +3,7 @@ import { css } from 'linaria';
 
 import Timestamp, { TimestampProps } from './Timestamp';
 import Reporters, { ReporterProps } from './Reporters';
+import Settings from './Settings';
 
 interface ArticleProps {
     optOutUrl?: string;
@@ -60,6 +61,7 @@ const Article: FunctionComponent<ArticleProps> = ({
             { reporters && <Reporters reporters={reporters}/>}
         </div><br/>
         <Content content={content}/>
+        <Settings />
     </Fragment>;
 };
 export default Article;
@@ -72,7 +74,6 @@ const Content: FunctionComponent<ContentProps> = ({ content }) => {
         display: inline-block;
         width: 640px;
         max-width: calc(100% - 40px);
-        font-family: 'Nanum Myeongjo', serif;
         font-size: 11pt;
         text-align: justify;
         line-height: 1.6;
diff --git a/src/view/Settings.tsx b/src/view/Settings.tsx
new file mode 100644
index 00000000..735423f9
--- /dev/null
+++ b/src/view/Settings.tsx
@@ -0,0 +1,183 @@
+import { h, Component } from 'preact';
+import { css, styled } from 'linaria';
+
+const settings = css`
+  position: fixed;
+  right: 0;
+  top: 0;
+  margin: 8px;
+  padding: 8px;
+  background: #f1f1f1;
+  color: #666;
+  border-radius: 50%;
+  font-size: 14px;
+  cursor: pointer;
+  user-select: none;
+`;
+
+const row = css`
+  display: flex;
+  flex-direction: row;
+
+  & + & {
+    margin-top: 1px;
+  }
+`;
+
+const button = css`
+  color: #222;
+  width: 100px;
+  height: 48px;
+  font-size: 20px;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  background: white;
+  cursor: pointer;
+  user-select: none;
+
+  &:hover {
+    background: #efefef;
+  }
+
+  & + & {
+    margin-left: 1px;
+  }
+`;
+
+const lineHeight = css`
+  display: flex;
+  flex-direction: column;
+`;
+
+const popup = css`
+  position: fixed;
+  right: 48px;
+  top: 8px;
+  display: flex;
+  flex-direction: column;
+  background: #ddd;
+  border: 1px solid #ddd;
+  border-radius: 5px;
+  overflow: hidden;
+  box-shadow: 0 0.5px 3px 1px rgba(0,0,0,.1);
+`;
+
+
+class Settings extends Component {
+    constructor() {
+        super();
+        this.state = {
+            visible: false,
+            fontFamily: 'serif', 
+            fontSize: 11, 
+            contentWidth: 640,
+            lineHeight: 1.6,
+        };
+
+        Object.keys(this.state).forEach(key => {
+            this.loadPref(key, this.state[key]);
+        });
+    }
+
+    togglePopup() {
+        this.setState({visible: !this.state.visible});
+    }
+
+    apply(key) {
+        let node = document.getElementById('content');
+        switch(key) {
+            case 'fontFamily':
+                node = document.body;
+                if (this.state.fontFamily == 'sans-serif') {
+                    node.style.fontFamily = "'Nanum Gothic', serif";
+                } else {
+                    node.style.fontFamily = "'Nanum Myeongjo', serif";
+                }
+                break;
+            case 'fontSize':
+                node.style.fontSize = this.state.fontSize + 'pt';
+                break;
+            case 'contentWidth':
+                node.style.width = this.state.contentWidth + 'px';
+                break;
+            case 'lineHeight':
+                node.style.lineHeight = this.state.lineHeight;
+                break;
+        }
+    }
+
+    set(key, value) {
+        switch(key) {
+            case 'fontFamily':
+                this.state.fontFamily = value;
+                break;
+            case 'fontSize':
+                this.state.fontSize = parseInt(this.state.fontSize) + parseInt(value);
+                break;
+            case 'contentWidth':
+                this.state.contentWidth = parseInt(this.state.contentWidth) + parseInt(value);
+                break;
+            case 'lineHeight':
+                this.state.lineHeight = Math.round((parseFloat(this.state.lineHeight) + parseFloat(value)) * 10) / 10;
+                break;
+        }
+        this.apply(key);
+        this.savePref(key, this.state[key]);
+    }
+
+    loadPref(key, value) {
+        return GM.getValue(key, value).then((v) => {
+            if (v != null && !isNaN(v)) {
+                this.state[key] = v;
+                this.apply(key);
+            }
+        });
+    }
+
+    savePref(key, value) {
+        GM.setValue(key, value);
+    }
+
+    render(props, state) {
+        return <div>
+            <div class={settings} onClick={ e => this.togglePopup() }>Aa</div>
+            {
+                this.state.visible ?
+                <div id="popup" class={popup}>
+                    <div class={row}>
+                        <div class={button} style={{ fontFamily: `sans-serif` }}
+                             onClick={ e => this.set('fontFamily', 'sans-serif') }>
+                            고딕</div>
+                        <div class={button} style={{ fontFamily: `serif` }}
+                             onClick={ e => this.set('fontFamily', 'serif') }>
+                            명조</div>
+                    </div>
+                    <div class={row}>
+                        <div class={button} onClick={ e => this.set('fontSize', 1) }>&#43;</div>
+                        <div class={button} onClick={ e => this.set('fontSize', -1) }>&#8722;</div>
+                    </div>
+                    <div class={row}>
+                        <div class={button} onClick={ e => this.set('contentWidth', 40) }>← →</div>
+                        <div class={button} onClick={ e => this.set('contentWidth', -40) }>→←</div>
+                    </div>
+                    <div class={row}>
+                        <div class={button} onClick={ e => this.set('lineHeight', 0.1) }>
+                          <div class={lineHeight} style={{ lineHeight: 0.38 }}>
+                            <span>—</span><span>—</span><span>—</span>
+                          </div>
+                        </div>
+                        <div class={button} onClick={ e => this.set('lineHeight', -0.1) }>
+                          <div class={lineHeight} style={{ lineHeight: 0.25 }}>
+                            <span>—</span><span>—</span><span>—</span>
+                          </div>
+                        </div>
+                    </div>
+                </div>
+                : null
+            }
+            </div>;
+    }
+}
+
+export default Settings;
diff --git a/src/view/index.css b/src/view/index.css
index 01fdc5ec..d3ed93e6 100644
--- a/src/view/index.css
+++ b/src/view/index.css
@@ -1,4 +1,4 @@
-@import url(https://fonts.googleapis.com/earlyaccess/nanummyeongjo.css);
+@import url('https://fonts.googleapis.com/css?family=Nanum+Gothic|Nanum+Myeongjo&display=swap');
 body {
     display: flex;
     flex-direction: column;
@@ -6,4 +6,5 @@ body {
     margin-top: 10px;
     margin-bottom: 60vh;
     text-align: center;
+    font-family: 'Nanum Myeongjo', serif;
 }