diff --git a/widget/src/index.ts b/widget/src/index.ts
index df908c8b..bbca1d59 100644
--- a/widget/src/index.ts
+++ b/widget/src/index.ts
@@ -5,20 +5,25 @@ interface TailchatWidgetOptions {
   host?: string;
   groupId: string;
   channelId: string;
-  style: Partial<CSSStyleDeclaration>;
+  widgetStyle?: Partial<CSSStyleDeclaration>;
+  iconStyle?: Partial<CSSStyleDeclaration>;
+  frameStyle?: Partial<CSSStyleDeclaration>;
 }
 
 const defaultTailchatWidgetOptions: Partial<TailchatWidgetOptions> = {
   host: 'https://nightly.paw.msgbyte.com/',
 };
 
-const containerSize = 48;
-const defaultTailchatWidgetStyle: Partial<CSSStyleDeclaration> = {
+const defaultWidgetStyle: Partial<CSSStyleDeclaration> = {
   position: 'absolute',
   right: '20px',
   bottom: '20px',
-  width: `${containerSize}px`,
-  height: `${containerSize}px`,
+};
+
+const iconContainerSize = 48;
+const defaultIconContainerStyle: Partial<CSSStyleDeclaration> = {
+  width: `${iconContainerSize}px`,
+  height: `${iconContainerSize}px`,
   boxShadow: '0 1px 4px rgba(0, 0, 0, 0.2)',
   borderRadius: '50%',
   cursor: 'pointer',
@@ -27,6 +32,14 @@ const defaultTailchatWidgetStyle: Partial<CSSStyleDeclaration> = {
   justifyContent: 'center',
 };
 
+const defaultFrameStyle: Partial<CSSStyleDeclaration> = {
+  width: '414px',
+  height: '736px',
+  border: '0',
+  borderRadius: '3px',
+  boxShadow: '0 1px 4px rgba(0, 0, 0, 0.2)',
+};
+
 const iconSize = 32;
 const iconSvg = `<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="${iconSize}" height="${iconSize}" preserveAspectRatio="xMidYMid meet" viewBox="0 0 24 24"><path d="M12 3C6.5 3 2 6.58 2 11a7.218 7.218 0 0 0 2.75 5.5c0 .6-.42 2.17-2.75 4.5c2.37-.11 4.64-1 6.47-2.5c1.14.33 2.34.5 3.53.5c5.5 0 10-3.58 10-8s-4.5-8-10-8m0 14c-4.42 0-8-2.69-8-6s3.58-6 8-6s8 2.69 8 6s-3.58 6-8 6m5-5v-2h-2v2h2m-4 0v-2h-2v2h2m-4 0v-2H7v2h2z" fill="currentColor"/></svg>`;
 
@@ -38,17 +51,64 @@ export function createTailchatWidget(_options: TailchatWidgetOptions) {
 
   const url = `${options.host}${options.groupId}/${options.channelId}`;
 
+  // 容器
   const container = document.createElement('div');
+  applyStyle(container, {
+    ...defaultWidgetStyle,
+    ..._options.widgetStyle,
+  });
 
-  // 设置容器样式
-  const style = { ...defaultTailchatWidgetStyle, ..._options.style };
-  for (const key in style) {
-    const val = style[key];
-    if (typeof val === 'string') {
-      container.style[key] = val;
+  // 图标
+  const iconContainer = document.createElement('div');
+  applyStyle(iconContainer, {
+    ...defaultIconContainerStyle,
+    ..._options.iconStyle,
+  });
+  iconContainer.innerHTML = iconSvg;
+  container.appendChild(iconContainer);
+
+  // Iframe 容器
+  let frameContainer: HTMLDivElement | null = null;
+  iconContainer.addEventListener('click', () => {
+    // 展开iframe
+    if (!frameContainer) {
+      // 元素不存在
+
+      // 容器
+      const _frameContainer = document.createElement('div');
+      frameContainer = _frameContainer;
+
+      // Iframe
+      const frameEl = document.createElement('iframe');
+      frameEl.src = url;
+      applyStyle(frameEl, {
+        ...defaultFrameStyle,
+        ..._options.frameStyle,
+      });
+
+      _frameContainer.appendChild(frameEl);
+      container.appendChild(_frameContainer);
+    } else {
+      // 已创建
+      frameContainer.style.display = 'block';
     }
-  }
-  container.innerHTML = iconSvg;
+
+    iconContainer.style.display = 'none';
+  });
 
   document.body.appendChild(container);
 }
+
+/**
+ * 应用样式到元素
+ * @param el 元素
+ * @param styles 样式
+ */
+function applyStyle(el: HTMLElement, styles: Partial<CSSStyleDeclaration>) {
+  for (const key in styles) {
+    const val = styles[key];
+    if (typeof val === 'string') {
+      el.style[key] = val;
+    }
+  }
+}