What Is The Great Divide?
In 2019, Chris Coyier published an essay that resonated with developers across the industry. He observed something that many had noticed but few had articulated: the front-end developer role had fractured into two distinct camps with different skills, priorities, and approaches to building for the web.
This divide--between developers focused on JavaScript and those focused on HTML, CSS, and design--continues to shape how we build for the web today. Understanding this split is essential for developers, teams, and organizations navigating modern web development.
The Two Camps
JavaScript-Focused Developers
On one side stands an army of developers whose work revolves heavily around JavaScript. These developers build complex single-page applications, manage state with sophisticated patterns, and often work primarily with frameworks like React, Vue, or Svelte.
Their concerns center on:
- Component architecture and reusability
- State management patterns (Redux, Jotai, signals)
- Build tooling and bundle optimization
- API integration and data fetching
- JavaScript runtime performance
HTML/CSS-Focused Developers
On the other side stands a different group--developers whose interests and skills focus on HTML, CSS, design, interaction patterns, and accessibility. These developers care deeply about semantic markup, responsive layouts, animation performance, and ensuring websites work for everyone.
Their concerns center on:
- Semantic HTML and accessibility (a11y)
- CSS architecture and maintainability
- Design system implementation
- Responsive and adaptive layouts
- Visual performance and animation smoothness
Both groups build for the web, but they often speak different languages, prioritize different outcomes, and may even view each other's work with suspicion. The key insight is that neither camp is superior--both contribute essential value to modern web development.
The Three Pillars of Front-End Knowledge
Drew Powers expanded the discussion into three distinct areas of expertise that help explain the complexity of modern front-end development.
Understanding the three pillars helps developers assess their strengths and identify growth areas
Browser APIs & Rendering
How browsers display content, including HTML/CSS fundamentals, accessibility, animations, hardware acceleration, and deep knowledge of browser rendering pipelines for optimal performance.
JavaScript Programming & Architecture
Building dynamic experiences with JavaScript, including frameworks, state management, API integration, type systems (TypeScript), and application architecture patterns.
The Toolchain
Node.js, npm, webpack, Babel, and other build tools that transform code for production. This meta-layer involves configuring and extending the development environment itself.
Modern Framing: Front-of-the-Front-End vs Back-of-the-Front-End
Brad Frost offered a more nuanced framework that has gained widespread acceptance: distinguishing between "front-of-the-front-end" and "back-of-the-front-end" developers.
Frontend Design, React, and a Bridge over the Great Divide by Brad Frost
Front-of-the-Front-End
Specializes in what users see and interact with directly. Expertise in HTML, CSS, visual design, typography, animation, and accessibility. Thinks in layouts, spacing, color systems, and UX details.
Back-of-the-Front-End
Focuses on logic, data, and interactivity that power interfaces. Expertise in JavaScript, state management, API integration, and application architecture. Builds systems that make interfaces dynamic.
Performance and The Great Divide
The divide has significant implications for web performance--an area where thoughtful teams combine both skill sets for optimal results. Our team specializes in performance optimization services that leverage both JavaScript optimization techniques and CSS rendering expertise.
Why Performance Matters
53%
Mobile users abandon sites taking over 3 seconds to load
1s
Delay can reduce conversions by up to 7%
90+
Target Lighthouse score for optimal user experience
JavaScript Performance
JavaScript is the most expensive resource on the web. It must be downloaded, parsed, compiled, and executed. Large JavaScript bundles delay interactivity and increase time-to-interactive. Techniques like code splitting, lazy loading, and efficient state management (such as working with async functions) help minimize this impact.
CSS Performance
CSS also has performance implications. Layout thrashing, expensive animations, and large style sheets can all degrade the user experience. Understanding CSS animation techniques and optimization strategies ensures smooth visual experiences.
The Modern Solution
Frameworks like Next.js help bridge the divide by providing server-side rendering (reducing JavaScript sent to clients) alongside excellent developer experience for building interactive features. This approach acknowledges that different content may warrant different approaches--static content served statically, dynamic content rendered appropriately.
Microsoft demonstrated this in practice when they removed React from Microsoft Edge to reduce JavaScript bundle size and improve performance.
Implications for Teams and Hiring
The Great Divide has practical implications for how organizations structure their teams and write job descriptions. Understanding these dynamics helps build more effective web development teams.
Clear Job Descriptions
Vague job descriptions asking for '5 years of React' AND 'expert CSS' may be seeking developers who don't exist. Specific descriptions attract candidates with the right skills.
Complementary Roles
Effective teams include both types working in collaboration. Front-of-the-front-end developers ensure accessibility and consistency; back-of-the-front-end build interactivity.
Collaborative Design Systems
Design systems provide a natural meeting point where both camps contribute their expertise to cohesive component libraries. Our team excels at [design system implementation](/services/web-development/) as part of comprehensive web solutions.
Bridging the Divide
Rather than viewing the divide as a problem to be solved, effective teams approach it as a reality that requires intentional bridging strategies. Chris Coyier reflected on the essay four years later, acknowledging the importance of having "a foot on both sides" of the divide.
Navigating The Divide as a Developer
For developers trying to understand where they fit or how to grow, the divide offers a useful framework for self-assessment.
Understanding Your Strengths
Developers should honestly assess where their skills lie. Are you more comfortable writing semantic HTML and fine-tuning CSS animations? Do you naturally think in terms of state management and component architecture? Neither is better--both are valuable.
Building Complementary Skills
Rather than trying to master both camps equally, consider building complementary skills. A CSS expert might learn enough JavaScript to work effectively with React actions and component patterns. A React developer might study CSS preprocessor fundamentals to style components more effectively.
Embracing the Divide
The divide exists because web development has grown too complex for any one person to master everything. As Tim Severien noted, JavaScript itself isn't the cause of the divide--rather, the diversification of web technologies created different developer contexts with different priorities.
The Future of Front-End Development
As the web platform evolves, the shape of the divide may change. New APIs reduce the need for JavaScript solutions. Server components and edge computing shift some interactivity concerns to the server. The boundaries between camps may become more or less distinct.
What remains constant is the need for developers who care about building excellent web experiences--whether they focus on the HTML and CSS that users see directly or the JavaScript that powers complex interactions.
The goal should not be eliminating the divide but understanding it well enough to build teams and careers that leverage both skill sets effectively. Whether you identify more with the front-of-the-front-end or back-of-the-front-end, the key is recognizing that both approaches contribute to building excellent web experiences.
The best teams combine both skill sets thoughtfully, and the best developers understand enough of both to collaborate effectively. As web development continues to evolve, the specific contours of the divide may shift. But the underlying lesson--that specialization is valuable and collaboration is essential--will remain relevant for years to come.
For organizations seeking to leverage both approaches, our comprehensive web development services bring together front-of-the-front-end and back-of-the-front-end expertise to deliver exceptional results.
Frequently Asked Questions
Which camp should I focus on?
Choose based on your interests and strengths. Both camps offer rewarding careers. The web needs specialists who excel in their domain, not generalists who spread thin.
Can I be both types of developer?
Some developers do work effectively in both areas, but it takes years of practice in each. Most find they have natural affinities for one while maintaining working knowledge of the other.
How does this affect hiring?
Write specific job descriptions that match your actual needs. A design-heavy role attracts front-of-the-front-end developers; an application feature role attracts back-of-the-front-end developers.
Does the divide hurt performance?
Not when teams collaborate well. The best performance comes when both specialists understand their impact--JavaScript size from one side, rendering performance from the other.
Will the divide disappear?
The specific contours may change as the web platform evolves, but the underlying complexity that created the divide will likely remain. Understanding and adapting is more realistic than elimination.
Sources
- CSS-Tricks: The Great Divide - The original essay by Chris Coyier that coined the term
- Chris Coyier: The Great Divide Was Indeed Divisive - Four years later reflection
- Drew Powers: The great(er) divide in front-end - Three pillars of front-end knowledge
- Brad Frost: Frontend Design, React, and a Bridge over the Great Divide - Front-of/front-of-front-end framework
- Microsoft Edge: An Even Faster Microsoft Edge - Real-world example of performance optimization
- Tim Severien: JavaScript didn't cause The Great Divide - Analysis of what created the divide