feat: 添加自定义外部容器样式

src/components/AnchorPage/Item.tsx

@@ -8,14 +8,22 @@ interface AnchorPageItemProps {
    * key，实际就是 标签id
    */
   itemKey: string,
+  /**
+   * 自定义外部样式
+   */
+  customStyle?: React.HTMLAttributes<HTMLDivElement>,
+  /**
+   * 自定义外部 className
+   */
+  className?: string,
 
   children?: React.ReactNode,
 }
 
 const AnchorPageItem: React.FC<AnchorPageItemProps> = (props: AnchorPageItemProps) => {
-  const { itemKey, children } = props;
+  const { itemKey, customStyle, className, children } = props;
   return (
-    <div id={itemKey}>
+    <div id={itemKey} style={customStyle} className={className}>
       {children}
     </div>
   );