Div + CSS layout: list element ul ol Li dl dt dd

The block-level element Div should be used as little as possible. In fact, like the table, the smaller the number of nesting, the better, it will also affect the speed!

Ol ordered list.
<Ol>
<Li> ...... </LI>
<Li> ...... </LI>
<Li> ...... </LI>
</OL>
Performance:
1 ......
2 ......
3 ......
Ul unordered list, represented by a large circle before Li rather than 123
<Ul>
<Li> ...... </LI>
<Li> ...... </LI>
</Ul>

The usage of dl dt dd is easy to ignore by many people
DL content Block
Title of the DT content Block
Dd content

Write as follows:
<DL>
<DT> title </DT>
<DD> content 1 </DD>
<DD> content 2 </DD>
</Dl>