HTML Builder 1
Basics (p, h1, h2, a, img, br, ul, ol, li, div)
Learn by building! Drag and drop code to complete challenges.
Basics (p, h1, h2, a, img, br, ul, ol, li, div)
Forms & tables (form, input, button, table, tr, td, video, audio)
Semantic HTML (header, nav, main, section, article, footer)
Selectors (id, class, element, combinators)
Box model (margin, padding, border, width, height)
Flexbox (flex-direction, justify-content, align-items, flex-wrap)
Basics (variables, data types, operators, strings)
Functions (function declaration, arrow functions, parameters)
DOM (getElementById, addEventListener, innerHTML)
Basics (variables, print, input, data types)
Control flow (if/else, for loop, while loop)
Functions (def, parameters, return, scope)
Queries (SELECT, WHERE, ORDER BY, LIMIT)
Joins (INNER JOIN, LEFT JOIN, multiple tables)
Advanced (GROUP BY, HAVING, subqueries, aggregations)
Basics (ls, cd, pwd, mkdir, rm, cp, mv)
Files (cat, head, tail, grep, chmod, chown)
Processes (ps, top, kill, grep, piping)
Basics (package, import, func, variables)
Slices, maps, structs
Interfaces, goroutines, channels
Basics (log levels, formatting, output)
Structured logging, JSON output
Log rotation, hooks, context
Basics (SELECT, INSERT, UPDATE, DELETE)
Joins, subqueries, CTEs
Window functions, indexes, views
Basics (types, interfaces, functions)
Generics, generics constraints
Utility types, mapped types
Basic monitoring commands
Prometheus queries
Advanced alerting
SQL basics
Joins and queries
Advanced SQL
Basic vim commands
Intermediate vim
Advanced vim
Basic Apache
SSL and security
Advanced Apache
Basic hardening
IPTables
Advanced hardening
Basic networking
Intermediate networking
Advanced networking
Basic bash commands
Intermediate bash
Advanced bash
Basic Docker
Intermediate Docker
Advanced Docker
Basic Git
Intermediate Git
Advanced Git
Basic K8s
Intermediate K8s
Advanced K8s
Basic Nginx
Intermediate Nginx
Advanced Nginx
DNS records
DNS tools
Advanced DNS
VPS basics
VPS providers
Advanced VPS
PHP basics
Functions & arrays
Advanced OOP
Terraform basics
Variables & modules
Advanced IaC
Ansible basics
Playbooks
Roles & Galaxy
CI/CD basics
Pipelines
Advanced CI/CD