pre code tags does not include background color

[jedipunkz]

Hi,

I wrote sass/custom/_color.scss like this...

$code-bg-color:      #000000; // Code background
$pre-bg: #000000;

But my HTML does not display background color with #000000.

How can I set background color with pre code tags.

Thanks.

[jedipunkz]

I noticed that back-quoted tag is ok, but 'space * 4 times' tag is not good.

I tested to write sample markdown.

```ruby
def test(test)
    puts test
end
```
    def test(test)
        puts test
    end

All of my contents include 'space * 8 times' tags. So do you have any ideas ?... (´・ω・｀)