HTML & CSS Web Design Intermediate Curriculum 5-Lessons | Grades 9–12 | High School | Adult Education | Box Modeling, CSS Positioning, Flexbox, Pseudo-Classes, Transitions & Effects

This series is designed to take students from absolute beginners to confident front-end developers who understand how to build clean, responsive, and accessible web pages using HTML and CSS. Each lesson is scaffolded to build on the previous one, with hands-on labs, real-world challenges, and reflection opportunities.

This 5-part intermediate lesson set is part of a larger series found here: From Tags to Transforms: A 15-Lesson Journey into HTML & CSS Web Design

Series Roadmap: HTML & CSS Getting Started

Intermediate:

6. Box Model Mastery – Padding, borders, margins

7. CSS Positioning – Static, relative, absolute, fixed

8. Flexbox Fundamentals – Responsive layouts made easy

9. Pseudo-classes & States – Hover, focus, active

10. Transitions & Effects – Smooth CSS interactions

Learning Standards

Aligned with:

• ISTE Standards for Students: Empowered Learner, Knowledge Constructor, Innovative Designer
• CSTA K–12 Computer Science Standards: Algorithms & Programming, Computing Systems
• Common Core ELA: Technical writing, digital literacy
• Web Content Accessibility Guidelines (WCAG): Semantic structure, alt text contrast rati Coding Progression

Now includes a Starter PowerPoint deck!

Sample Code Progression

Intermediate Snippet (Lesson 8)

.container { display: flex; justify-content: space-between; align-items: center; }

Pedagogical Approach:

• Scaffolded Learning: Each lesson builds on prior knowledge
• Real-World Relevance: Students create usable code
• Project-Based Challenges: Culminates in the ability to create a portfolio website
• Accessibility & Inclusion: Emphasis on semantic HTML and WCAG standards
• Reflection & Metacognition: Exit slips and journaling prompts

✅ What’s Included in Every Lesson

• Teacher’s guide with term breakdowns and real-world context
• Lesson outline with time estimates and learning outcomes
• ‍Student handout with lab, challenge, and reflection
• Multiple HTML & CSS code examples
• Expanded exercises
• Rubric for coding
• Challenge task
• Exit slip

See a few of our other web design lessons below:

Mission Makers Bundle: Group Co-op (Pair Programming) in Scratch, Python, & HTML

Pair-Programming Mad Libs: JavaScript Function meets Form in Group Project

Emoji Memory Game: Small-Group HTML & JavaScript Code Swap Challenge

The Ultimate Pizza Ordering Webse – Learn HTML, JavaScript & Online Payments!

Interactive Student Resume Website with HTML, JavaScript & C# Backend

Autumn Arcade: JavaScript Leaf Catcher Game | Canvas, Loops, Arrays, Collision

Code Pictionary: JavaScript in Action! Canvas Functions and Creative Teams

JavaScript Escape Room — Team Coding Challenge for Grades 7–12 | TPT

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