I want to create a multi level drop down box. when I click on setauthor it should display a submenu with some names

![when I click on setauthor it should display a submenu with some names](https://i.stack.imgur.com/LBVow.jpg)

My first level code :

```
<select>
     <option value="Like">Like</option>
     <option value="Star">Star</option>
     <option value="Set Author">Set Author</option>
</select>

```

Kindly help me.