diff --git a/src/App.html b/src/App.html
index c54fde62..f19586f4 100644
--- a/src/App.html
+++ b/src/App.html
@@ -1,6 +1,3 @@
-<h1>
-  rrweb player playground
-</h1>
 <Player {events} />
 
 <style>
diff --git a/src/Controller.html b/src/Controller.html
new file mode 100644
index 00000000..6a62eb1e
--- /dev/null
+++ b/src/Controller.html
@@ -0,0 +1,108 @@
+<div class="rr-controller">
+  <div class="rr-timeline">
+    <span class="rr-timeline__time">{formatTime(currentTime)}</span>
+    <div class="rr-progress">
+      <div class="rr-progress__step" ref:step style="width: {percentage}"></div>
+      <div class="rr-progress__handler" ref:handler style="left: {percentage}"></div>
+    </div>
+    <span class="rr-timeline__time">{formatTime(meta.totalTime)}</span>
+  </div>
+  <button>pause</button>
+</div>
+
+<script>
+  import { formatTime } from './utils.js';
+
+  export default {
+    data() {
+      return {
+        currentTime: 0,
+      };
+    },
+    computed: {
+      meta({ replayer }) {
+        return replayer.getMetaData();
+      },
+      percentage({ currentTime, meta }) {
+        return `${100 * currentTime / meta.totalTime}%`;
+      },
+    },
+    helpers: {
+      formatTime,
+    },
+    methods: {
+      loopTimer() {
+        const now = performance.now();
+        const self = this;
+
+        function update(step) {
+          let { currentTime, meta } = self.get();
+          currentTime = Math.floor(step - now);
+          self.set({ currentTime });
+
+          if (currentTime < meta.totalTime) {
+            requestAnimationFrame(update);
+          }
+        }
+
+        requestAnimationFrame(update);
+      },
+    },
+    onupdate({ changed, current }) {
+      if (changed.replayer) {
+        this.loopTimer();
+        current.replayer.play();
+      }
+    },
+  };
+</script>
+
+<style>
+  .rr-controller {
+    width: 100%;
+    height: 80px;
+    background: rgba(0, 0, 0, .5);
+    display: flex;
+    flex-direction: column;
+    justify-content: space-around;
+    align-items: center;
+    padding: 10px;
+  }
+
+  .rr-timeline {
+    width: 80%;
+    display: flex;
+    align-items: center
+  }
+
+  .rr-timeline__time {
+    padding: 0 20px;
+    color: white;
+  }
+
+  .rr-progress {
+    width: 100%;
+    height: 4px;
+    background: white;
+    position: relative;
+    border-radius: 3px;
+  }
+
+  .rr-progress__step {
+    height: 100%;
+    position: absolute;
+    left: 0;
+    top: 0;
+    background: orange
+  }
+
+  .rr-progress__handler {
+    width: 20px;
+    height: 20px;
+    border-radius: 10px;
+    position: absolute;
+    top: 2px;
+    transform: translate(-50%, -50%);
+    background: orange;
+  }
+</style>
\ No newline at end of file
diff --git a/src/Player.html b/src/Player.html
index 1d5a5617..b47fe52a 100644
--- a/src/Player.html
+++ b/src/Player.html
@@ -1,10 +1,65 @@
 <div class="rr-player">
   <div class="rr-player__frame" ref:frame { style }></div>
+  {#if replayer}
+  <Controller { replayer } />
+  {/if}
 </div>
 
+<script>
+  import { Replayer } from 'rrweb';
+  import { inlineCss } from './utils.js';
+
+  export default {
+    components: {
+      Controller: './Controller.html',
+    },
+    data() {
+      return {
+        width: 1024,
+        height: 576,
+        events: [],
+        replayer: null,
+      };
+    },
+    computed: {
+      style({ width, height }) {
+        return inlineCss({
+          width: `${width}px`,
+          height: `${height}px`,
+        });
+      },
+    },
+    methods: {
+      updateScale(el, frameDimension) {
+        const { width, height } = this.get();
+        const widthScale = (width - 20) / frameDimension.width;
+        const heightScale = (height - 20) / frameDimension.height;
+        el.style.transform =
+          `scale(${Math.min(widthScale, heightScale, 1)})` +
+          'translate(-50%, -50%)';
+      },
+    },
+    oncreate(p) {
+      const { events } = this.get();
+      const replayer = new Replayer(events, {
+        speed: 1,
+        root: this.refs.frame,
+      });
+      replayer.on('resize', (dimension) =>
+        this.updateScale(replayer.wrapper, dimension)
+      );
+      this.set({
+        replayer,
+      });
+    },
+  };
+
+
+</script>
+
 <style>
   .rr-player {
-    border: 3px solid indianred;
+    background: white;
     float: left;
     clear: both;
   }
@@ -17,9 +72,14 @@
     float: left;
     clear: both;
     transform-origin: top left;
-    left: 50%;
-    top: 50%;
-    border: 2px solid grey;
+    left: calc(50% - 10px);
+    top: calc(50% - 10px);
+    margin: 10px;
+    box-shadow: 0 3px 28px rgba(0, 0, 0, 0.25), 0 1px 10px rgba(0, 0, 0, 0.22);
+  }
+
+  :global(.replayer-wrapper > iframe) {
+    border: none;
   }
 
   /* get from rrweb */
@@ -43,48 +103,4 @@
     transform: translate(-10px, -10px);
     opacity: 0.5;
   }
-</style>
-
-<script>
-  import { Replayer } from 'rrweb';
-  import { inlineCss } from './util.js';
-
-  export default {
-    data() {
-      return {
-        width: 1024,
-        height: 576,
-        events: [],
-      };
-    },
-    computed: {
-      style({ width, height }) {
-        return inlineCss({
-          width: `${width}px`,
-          height: `${height}px`,
-        });
-      },
-    },
-    methods: {
-      updateScale(el, frameDimension) {
-        const { width, height } = this.get();
-        const widthScale = width / frameDimension.width;
-        const heightScale = height / frameDimension.height;
-        el.style.transform =
-          `scale(${Math.min(widthScale, heightScale, 1)})` +
-          'translate(-50%, -50%)';
-      },
-    },
-    oncreate(p) {
-      const { events } = this.get();
-      const replayer = new Replayer(events, {
-        speed: 1,
-        root: this.refs.frame,
-        onResize: (dimension) => this.updateScale(replayer.wrapper, dimension),
-      });
-      replayer.play();
-    },
-  };
-
-
-</script>
\ No newline at end of file
+</style>
\ No newline at end of file
diff --git a/src/util.js b/src/util.js
deleted file mode 100644
index da07ec19..00000000
--- a/src/util.js
+++ /dev/null
@@ -1,7 +0,0 @@
-export function inlineCss(cssObj) {
-  let style = '';
-  Object.keys(cssObj).forEach(key => {
-    style += `${key}: ${cssObj[key]};`;
-  });
-  return style;
-}
diff --git a/src/utils.js b/src/utils.js
new file mode 100644
index 00000000..b19c4603
--- /dev/null
+++ b/src/utils.js
@@ -0,0 +1,33 @@
+export function inlineCss(cssObj) {
+  let style = '';
+  Object.keys(cssObj).forEach(key => {
+    style += `${key}: ${cssObj[key]};`;
+  });
+  return style;
+}
+
+function padZero(num, len = 2) {
+  const threshold = Math.pow(10, len - 1);
+  if (num < threshold) {
+    num = String(num);
+    while (String(threshold).length > num.length) {
+      num = '0' + num;
+    }
+  }
+  return num;
+}
+
+const SECOND = 1000;
+const MINUTE = 60 * SECOND;
+const HOUR = 60 * MINUTE;
+export function formatTime(ms) {
+  const hour = Math.floor(ms / HOUR);
+  ms = ms % HOUR;
+  const minute = Math.floor(ms / MINUTE);
+  ms = ms % MINUTE;
+  const second = Math.floor(ms / SECOND);
+  if (hour) {
+    return `${padZero(hour)}:${padZero(minute)}:${padZero(minute)}`;
+  }
+  return `${padZero(hour)}:${padZero(second)}`;
+}