Frontend
Learn HTML & CSS
HTML describes the structure and meaning of a page. CSS describes how that structure should look. Together they are the foundation every web interface is built on.
Why teams use it
- Every web framework eventually produces HTML and CSS, so understanding them makes the frameworks far less mysterious.
- Semantic HTML is the single biggest factor in whether a page is accessible.
- Modern CSS layout removes most of the guesswork that used to surround responsive design.
Where you will meet it
The difference between a form that a screen reader can navigate and one that it cannot is usually a handful of HTML decisions.
What to learn, and in what order
Work through these roughly in order. Jumping to the advanced list before the basics are solid is the most common way people get stuck.
Beginner
- Elements, attributes and document structure
- Semantic tags and why they matter
- Selectors, the box model and spacing
- Flexbox for one-dimensional layout
Intermediate
- CSS Grid for two-dimensional layout
- Responsive design and breakpoints
- Custom properties and design tokens
- Accessible forms and focus states
Advanced
- Cascade layers and specificity control
- Container queries
- Performance: layout, paint and reflow
Have a project worth talking through?
Tell us what you're building or what's slowing your current system down. We'll give you a direct read on scope and approach.