Images missing max-width property

[paskal]

Hello!

I've stumbled upon the very same issue as the dim0627/hugo_theme_beg#19:

The text won't wrap as well.
Also code example is not scrollable by itself but makes whole page scrollable:

Code of this example:

``` json
{
    "shell":true,
    "cmd": ["rsync -az '$file' server.example.org:~ && ssh server.example.org 'chmod +x ./$file_name; ./$file_name'"],
}
```

Here is my blog source to replicate problems.

[kritoke]

Issue should be fixed with latest release.