Foundation 100

- HTTP
- REST APIs
- Authentication
- JWT Authentication
- Authorization
- Password Hashing
- CRUD Operations
- Request Validation
- Error Handling
- Environment Variables
- Relational Databases
- PostgreSQL
- SQL Fundamentals
- Database Tables
- Primary Keys
- Foreign Keys
- Database Relationships
- Prisma ORM
- Prisma Migrations
- Prisma Client
- Unit Testing
- Jest
- Mocking
- Integration Testing
- End-to-End Testing
- Test Coverage
- Linting
- Static Analysis
- Debugging
- Code Reviews
- Git Basics
- Branching
- Merge
- Rebase
- Conflict Resolution
- Semantic Commits
- Pull Requests
- GitHub Workflow
- Code Ownership
- Release Versioning
- Docker
- Docker Compose
- Build Pipelines
- CI/CD
- Environment Configuration
- Secrets Management
- Reverse Proxy
- Deployment Strategies
- Monitoring
- Centralized Logging
- SOLID Principles
- Design Patterns
- Layered Architecture
- Clean Architecture
- Domain Modeling
- System Design Basics
- Scalability
- Performance
- Security Principles
- Technical Debt

Frontend

CSS

2 topics cover CSS across the Foundation 100.

More topics

beginner13 min read

CSS Styling and Properties

Learn how CSS controls the appearance of HTML elements, how CSS rules are written, and how common properties are used to style text, colors, spacing, sizing, borders, backgrounds, layouts, and interactive states.

beginner12 min read

Media Queries

A way to apply CSS rules only when a condition about the display holds — most often a minimum width — so a layout can change as the space available changes.

Projects using CSS

Practice CSS on real Padlor projects — coming soon.