Fix width font (1)

Code:

This is ```fix-width``` font.

View:

This is fix-width font.

Fix width font (2)

Code:

This is `fix-width` font.

View:

This is fix-width font.

Code block with indent

code:

    var foo = "bar";
    document.write(foo);
    function xxdebug()
    {
      return false;
    }

view:

var foo = "bar";
document.write(foo);
function xxdebug()
{
  return false;
}

Code block with ```

code:

```
var foo = "bar";
document.write(foo);
function xxdebug()
{
  return false;
}
```

view:

var foo = "bar";
document.write(foo);
function xxdebug()
{
  return false;
}

syntax highlight

code:


var foo = "bar";
document.write(foo);
function xxdebug()
{
  return false;
}

view:

var foo = "bar";
document.write(foo);
function xxdebug()
{
  return false;
}

Code block (fenced code blocks)

code:

```
# ls
foo bar
```

view:

# ls
foo bar

Code block with syntax highlight (fenced code blocks)

code:

```javascript
var foo = "bar";
```

view:

var foo = "bar";