_Italic_, *Italic*.  __Bold__, **Bold**.  
___Bold Italic___, ***Bold Italic***.  
~~Strikethrough~~, S̶t̶r̶i̶k̶e̶t̶h̶r̶o̶u̶g̶h̶.

~~~html
<p>
<del>Strikethrough</del>, <s>Strikethrough</s>.<br />
~~~

```html
<strong><em>Bold Italic</em></strong>.
<strong><em>Bold Italic</em></strong>.<br />
<strong>Bold</strong>, <strong>Bold</strong>.
<em>Italic</em>, <em>Italic</em>.
```