# H1 – Main Title
## H2 – Section
### H3 – Subsection
#### H4
##### H5
###### H6
*Italic* or _Italic_ → *Italic*
**Bold** or __Bold__ → **Bold**
***Bold Italic*** → ***Bold Italic***
~~Strikethrough~~ → ~~Strikethrough~~
- Item
* Another
+ One more
1. First
2. Second
3. Third
- Main
- Sub
- Sub-sub
[Text](https://example.com)

> This is a quote.
>> Nested quote.
Use `code` for short snippets.
<pre>
```python
def hello():
print("Hello, world!")
```
</pre>
---
- [ ] Unchecked
- [x] Checked
#tagname
| Header 1 | Header 2 |
|----------|----------|
| Row 1 | Value 1 |
| Row 2 | Value 2 |