You’ll find this post in your _posts directory. Go ahead and edit it and re-build the site to see your changes. You can rebuild the site in many different ways, but the most common way is to run jekyll serve, which launches a web server and auto-regenerates your site when a file is updated.

To add new posts, simply add a file in the _posts directory that follows the convention YYYY-MM-DD-name-of-post.ext and includes the necessary front matter. Take a look at the source for this post to get an idea about how it works.

Jekyll also offers powerful support for code snippets:

def print_hi(name)
  puts "Hi, #{name}"
end
print_hi('Tom')
#=> prints 'Hi, Tom' to STDOUT.

Check out the Jekyll docs for more info on how to get the most out of Jekyll. File all bugs/feature requests at Jekyll’s GitHub repo. If you have questions, you can ask them on Jekyll Talk.

Here be a sample post with a custom background image. To utilize this “feature” just add the following YAML to a post’s front matter.

image:
  background: filename.png

This little bit of YAML makes the assumption that your background image asset is in the /images folder. If you place it somewhere else or are hotlinking from the web, just include the full http(s):// URL. Either way you should have a background image that is tiled.

If you want to set a background image for the entire site just add background: filename.png to your _config.yml and BOOM — background images on every page!

Background images from Subtle Patterns (Subtle Patterns) / CC BY-SA 3.0
Syntax Highlighting Post

Syntax highlighting is a feature that displays source code, in different colors and fonts according to the category of terms. This feature facilitates writing in a structured language such as a programming language or a markup language as both structures and syntax errors are visually distinct. Highlighting does not affect the meaning of the text itself; it is intended only for human readers.1

Highlighted Code Blocks

To modify styling and highlight colors edit /_sass/_syntax.scss.

#container {
    float: left;
    margin: 0 -240px 0 0;
    width: 100%;
}
<nav class="pagination" role="navigation">
    {% if page.previous %}
        <a href="{{ site.url }}{{ page.previous.url }}" class="btn" title="{{ page.previous.title }}">Previous article</a>
    {% endif %}
    {% if page.next %}
        <a href="{{ site.url }}{{ page.next.url }}" class="btn" title="{{ page.next.title }}">Next article</a>
    {% endif %}
</nav><!-- /.pagination -->
module Jekyll
  class TagIndex < Page
    def initialize(site, base, dir, tag)
      @site = site
      @base = base
      @dir = dir
      @name = 'index.html'
      self.process(@name)
      self.read_yaml(File.join(base, '_layouts'), 'tag_index.html')
      self.data['tag'] = tag
      tag_title_prefix = site.config['tag_title_prefix'] || 'Tagged: '
      tag_title_suffix = site.config['tag_title_suffix'] || '&#8211;'
      self.data['title'] = "#{tag_title_prefix}#{tag}"
      self.data['description'] = "An archive of posts tagged #{tag}."
    end
  end
end

Standard Code Block

<nav class="pagination" role="navigation">
    {% if page.previous %}
        <a href="{{ site.url }}{{ page.previous.url }}" class="btn" title="{{ page.previous.title }}">Previous article</a>
    {% endif %}
    {% if page.next %}
        <a href="{{ site.url }}{{ page.next.url }}" class="btn" title="{{ page.next.title }}">Next article</a>
    {% endif %}
</nav><!-- /.pagination -->

Fenced Code Blocks

To modify styling and highlight colors edit /_sass/_coderay.scss. Line numbers and a few other things can be modified in _config.yml. Consult Jekyll’s documentation for more information.

#container {
    float: left;
    margin: 0 -240px 0 0;
    width: 100%;
}
<nav class="pagination" role="navigation">
    {% if page.previous %}
        <a href="{{ site.url }}{{ page.previous.url }}" class="btn" title="{{ page.previous.title }}">Previous article</a>
    {% endif %}
    {% if page.next %}
        <a href="{{ site.url }}{{ page.next.url }}" class="btn" title="{{ page.next.title }}">Next article</a>
    {% endif %}
</nav><!-- /.pagination -->
module Jekyll
  class TagIndex < Page
    def initialize(site, base, dir, tag)
      @site = site
      @base = base
      @dir = dir
      @name = 'index.html'
      self.process(@name)
      self.read_yaml(File.join(base, '_layouts'), 'tag_index.html')
      self.data['tag'] = tag
      tag_title_prefix = site.config['tag_title_prefix'] || 'Tagged: '
      tag_title_suffix = site.config['tag_title_suffix'] || '&#8211;'
      self.data['title'] = "#{tag_title_prefix}#{tag}"
      self.data['description'] = "An archive of posts tagged #{tag}."
    end
  end
end

Sample Link Post

This theme supports link posts, made famous by John Gruber. To use, just add link: http://url-you-want-linked to the post’s YAML front matter and you’re done.

Video embeds are responsive and scale with the width of the main content block with the help of FitVids.

Not sure if this only effects Kramdown or if it’s an issue with Markdown in general. But adding YouTube video embeds causes errors when building your Jekyll site. To fix add a space between the <iframe> tags and remove allowfullscreen. Example below:

<iframe width="560" height="315" src="//www.youtube.com/embed/SU3kYxJmWuQ" frameborder="0"> </iframe>