Last Updated: 

Converting a CSS HTML Site into Jekyll

In the world of web development, static site generators have gained significant popularity due to their simplicity, security, and performance. Jekyll is one such powerful static site generator written in Ruby. It allows you to transform plain text into static websites and blogs. If you have an existing CSS HTML site, converting it into a Jekyll site can bring numerous benefits, such as easier content management, the ability to use templates, and support for Markdown files. In this blog post, we will explore the fundamental concepts, usage methods, common practices, and best practices for converting a CSS HTML site into Jekyll.

Table of Contents#

  1. Fundamental Concepts
  2. Usage Methods
  3. Common Practices
  4. Best Practices
  5. Conclusion
  6. References

Fundamental Concepts#

What is Jekyll?#

Jekyll is a static site generator that takes Markdown, Textile, or HTML files and uses layouts to create a complete static website. It uses Liquid templating language to add dynamic functionality to static pages. Jekyll also has built-in support for front-matter, which allows you to define metadata for your pages and posts.

Why Convert to Jekyll?#

  • Content Management: Jekyll allows you to manage your content more efficiently. You can write your content in Markdown, which is easier to read and write than HTML.
  • Templates: You can create reusable templates for your site, which reduces code duplication and makes it easier to maintain your site.
  • Performance: Static sites generated by Jekyll are fast because they don't require server-side processing.

Key Components of Jekyll#

  • Layouts: Layouts are templates that wrap around your content. They are usually stored in the _layouts directory.
  • Includes: Includes are snippets of code that can be reused across multiple pages. They are stored in the _includes directory.
  • Pages: Pages are individual HTML or Markdown files that represent a single page on your site.
  • Posts: Posts are used for blog-style content. They are stored in the _posts directory and follow a specific naming convention (YYYY-MM-DD-title.md).

Usage Methods#

Step 1: Install Jekyll#

First, make sure you have Ruby and RubyGems installed on your system. Then, you can install Jekyll using the following command:

gem install jekyll bundler

Step 2: Create a New Jekyll Site#

Navigate to the directory where you want to create your Jekyll site and run the following command:

jekyll new my-jekyll-site
cd my-jekyll-site

Step 3: Analyze Your CSS HTML Site#

Before starting the conversion, analyze your existing CSS HTML site. Identify the common elements such as headers, footers, navigation menus, and sidebars. These elements can be converted into Jekyll layouts or includes.

Step 4: Convert HTML Pages to Markdown#

For each HTML page in your site, create a corresponding Markdown file in the appropriate location in your Jekyll site. Add front-matter to the top of each Markdown file. For example:

---
layout: default
title: My Page Title
---
This is the content of my page.

Step 5: Create Layouts and Includes#

  • Layouts: Create a layout file in the _layouts directory. For example, a basic default.html layout:
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>{{ page.title }}</title>
    <link rel="stylesheet" href="{{ '/assets/css/style.css' | relative_url }}">
</head>
<body>
    {% include header.html %}
    {{ content }}
    {% include footer.html %}
</body>
</html>
  • Includes: Create include files in the _includes directory. For example, a header.html include:
<header>
    <h1>My Site Header</h1>
    <nav>
        <ul>
            <li><a href="/">Home</a></li>
            <li><a href="/about">About</a></li>
        </ul>
    </nav>
</header>

Step 6: Move CSS and Assets#

Copy your CSS files, images, and other assets to the appropriate directories in your Jekyll site. By default, CSS files are usually placed in the assets/css directory, and images are placed in the assets/img directory.

Step 7: Build and Serve Your Jekyll Site#

To build your Jekyll site, run the following command:

jekyll build

To serve your site locally and preview it in your browser, run:

jekyll serve

Common Practices#

Use Front-Matter Effectively#

Front-matter allows you to define metadata for your pages and posts. You can use it to set the page title, layout, and other variables. For example:

---
layout: post
title: "My First Blog Post"
date: 2023-10-01
categories: [blog, technology]
---

Keep Assets Organized#

Organize your CSS, JavaScript, and image files in separate directories within the assets directory. This makes it easier to manage and update your assets.

Use Liquid Tags#

Liquid tags are used to add dynamic functionality to your Jekyll site. For example, you can use the for loop to display a list of posts:

<ul>
    {% for post in site.posts %}
    <li><a href="{{ post.url }}">{{ post.title }}</a></li>
    {% endfor %}
</ul>

Best Practices#

Minify Assets#

Minify your CSS and JavaScript files to reduce the file size and improve the performance of your site. You can use tools like UglifyJS for JavaScript and cssnano for CSS.

Test Your Site#

Before deploying your Jekyll site, test it thoroughly on different browsers and devices. Make sure all the links work, and the site looks and functions as expected.

Version Control#

Use a version control system like Git to manage your Jekyll site. This allows you to track changes, collaborate with others, and easily roll back to previous versions if needed.

Conclusion#

Converting a CSS HTML site into a Jekyll site can bring many benefits, including easier content management, better code organization, and improved performance. By understanding the fundamental concepts, following the usage methods, and implementing common and best practices, you can successfully convert your existing site into a Jekyll - powered site. Remember to test your site thoroughly and keep your assets organized for a smooth development experience.

References#

2025-10