.
[ ] unchecked
.
<p><input type="checkbox" id="checkbox0"><label for="checkbox0">unchecked</label></p>
.

.
[_] unchecked
.
<p><input type="checkbox" id="checkbox1"><label for="checkbox1">unchecked</label></p>
.

.
[x] checked
.
<p><input type="checkbox" id="checkbox2" checked=""><label for="checkbox2">checked</label></p>
.

.
[X] checked
.
<p><input type="checkbox" id="checkbox3" checked=""><label for="checkbox3">checked</label></p>
.

.
- [ ] unchecked
- [X] checked
.
<ul>
<li><input type="checkbox" id="checkbox4"><label for="checkbox4">unchecked</label></li>
<li><input type="checkbox" id="checkbox5" checked=""><label for="checkbox5">checked</label></li>
</ul>
.

.
[ ] unchecked *with* **markdown**
[ ] unchecked *with* markdown
[X] checked ~~with~~ [markdown]()
.
<p><input type="checkbox" id="checkbox8"><label for="checkbox8">unchecked <em>with</em> <strong>markdown</strong></label>
<input type="checkbox" id="checkbox7"><label for="checkbox7">unchecked <em>with</em> markdown</label>
<input type="checkbox" id="checkbox6" checked=""><label for="checkbox6">checked <s>with</s> <a href="">markdown</a></label></p>
.

.
> [ ] unchecked *with* **markdown**
> > Rather replace with:
> > [ ] unchecked *with* **markdown**
> >					```
> >					var block = 'and a code block';
> >					```
> > [X] checked ~~with~~ [markdown]()
.
<blockquote>
<p><input type="checkbox" id="checkbox9"><label for="checkbox9">unchecked <em>with</em> <strong>markdown</strong></label></p>
<blockquote>
<p>Rather replace with:
<input type="checkbox" id="checkbox11"><label for="checkbox11">unchecked <em>with</em> <strong>markdown</strong>
<code> 				var block = 'and a code block'; 				</code></label>
<input type="checkbox" id="checkbox10" checked=""><label for="checkbox10">checked <s>with</s> <a href="">markdown</a></label></p>
</blockquote>
</blockquote>
.

.
- [ ] unchecked *with* **markdown**
- [X] checked ~~with~~ [markdown]()
- [x] checked _with_ [link](http://example.com)
.
<ul>
<li><input type="checkbox" id="checkbox12"><label for="checkbox12">unchecked <em>with</em> <strong>markdown</strong></label></li>
<li><input type="checkbox" id="checkbox13" checked=""><label for="checkbox13">checked <s>with</s> <a href="">markdown</a></label></li>
<li><input type="checkbox" id="checkbox14" checked=""><label for="checkbox14">checked <em>with</em> <a href="http://example.com">link</a></label></li>
</ul>
.

.
 Col1              | Col2               | Col3
-------------------|--------------------|-----------------
 [ ]               | no label           | not a checkbox
 [x] text          | without            | markdown
 [ ] test *markup* | with               | markdown
 only one checkbox | rest are the label | [X] [ ] [x] [_]
.
<table>
<thead>
<tr>
<th>Col1</th>
<th>Col2</th>
<th>Col3</th>
</tr>
</thead>
<tbody>
<tr>
<td data-label="Col1">[ ]</td>
<td data-label="Col2">no label</td>
<td data-label="Col3">not a checkbox</td>
</tr>
<tr>
<td data-label="Col1"><input type="checkbox" id="checkbox15" checked=""><label for="checkbox15">text</label></td>
<td data-label="Col2">without</td>
<td data-label="Col3">markdown</td>
</tr>
<tr>
<td data-label="Col1"><input type="checkbox" id="checkbox16"><label for="checkbox16">test <em>markup</em></label></td>
<td data-label="Col2">with</td>
<td data-label="Col3">markdown</td>
</tr>
<tr>
<td data-label="Col1">only one checkbox</td>
<td data-label="Col2">rest are the label</td>
<td data-label="Col3"><input type="checkbox" id="checkbox17" checked=""><label for="checkbox17">[ ] [x] [_]</label></td>
</tr>
</tbody>
</table>
.