how to do nested lists here?

Update: I started a topic about this in Opera Forum.

Working with the list function of this web interface seems not to allow nested lists. On the help-page for the Opera blog it is said:

What about HTML support?
Yup, you got it.

I tried it with xhtml-notation <ul> + </ul>, <li> + </li> but it looked ugly with a lot of free space between every list point. HTML-like notation is ok for one-level-lists, but do not solve the problem with nested lists.

Do I really have to design some blog-css or even worse add styling to every blog-entry when I want to use simple (x)html?

Following examples are simple lists.

example using blog-options:

• first list entry
• second list entry
• third list entry

example using xhtml-notation:

• first list entry
• second list entry
• third list entry

nested list using xhtml-notation:

• first list entry
• second list entry

• • nested 1
  • nested 2

• third list entry

using html-notation – leaving end tags </li> solves the problem with simple list, but doesn't help with the nested list:

• first list entry
• second list entry
  

  • nested 1
  • nested 2

• third list entry

hint: every single < and > you can see in this post is italic (you could use bold), otherwise they wouldn't be visible.