Master HTML & CSS 2026: Web Development Foundation

Explain the end-to-end web flow: from browser and DNS to IP, server, requests and responses, and how HTML, CSS, and JavaScript render static and dynamic sites.

Set up your development environment by choosing a code editor (prefer VS Code), creating a project folder, installing essential extensions (live server, prettier), and launching a local server with index.html.

Learn how HTML structures web pages with head and body, use opening and closing tags or self-closing tags, include boilerplate, and inspect pages in Chrome or Firefox.

Explore head section of an HTML document, including title, meta tags, encoding, viewport, style, links, scripts, and base, and learn how these metadata elements influence search engines and page behavior.

Discover common HTML tags, including headings (H1–H6) and paragraphs, plus inline formats like italic and bold. Learn to use opening and closing tags for structured content.

Learn to implement web media—favicon, images, videos, and audio—by organizing assets in media folders, using attributes (src, alt, width, height, controls), and backup sources like unsplash and pexels.

Learn to link pages to each other or to any website using images or text as clickable links, and use the target attribute to open in a new tab.

Master the basics of HTML forms, including input fields, labels, ids, and a submit button with action. Explore validation with length restrictions and adding radio, checkbox, and dropdown controls.

Demonstrate binding radio groups with name and value attributes, and incorporate selects and options for user plans. Validate submission through labeled inputs, placeholders, and password fields to capture user data.

Add comments to describe sections, forms, and images, keeping notes behind the scenes for other developers. View source reveals these comments, while you learn to adjust the editor space.

Learn how to implement ordered and unordered HTML lists, nest lists to show hierarchies, and work with examples of locations and cities.

Explore how to create tables with headings and data rows, organizing location, guide, and contact information, and structure with head and body sections for web pages.

Explore block and inline HTML elements, learn how to divide content with divs and spans, and group sections like navigation, main content, and footer to structure web pages.

Learn how id creates identity for elements and how class generalizes styling across items, with examples like logo, navigation, input fields, and login or registration buttons, using css and javascript.

Learn how HTML semantics clarify content structure with header, main, section, article, and footer, and how semantic tags over non-semantic divs improve accessibility and help Google interpret the page.

Explore semantic tags like figure with figcaption to provide image captions and fallback text. Learn to structure content with header, article, section, and aside and apply alt text for accessibility.

Learn to render special characters using HTML entities, including copyright and division symbols, by using entity names or numbers rather than copying symbols.

Master css basics by linking an external stylesheet, using selectors (class and id), applying color, font-size, and font-family, and inspecting elements to refine styling.

Explore CSS selectors, including the universal selector * and combination selectors, and apply properties to images inside a navigation header using ID and class selectors.

Master CSS selectors to target elements efficiently using grouping and combinators, from universal and descendant selections to direct child, adjacent and general siblings, and precise class, ID, and tag selections.

Practice css selectors through an interactive game, mastering universal, descendant, child, and sibling selectors across several levels, with guidance on selecting nested elements; next up, attribute selectors.

Learn CSS attribute selectors in selector game II: select elements by attributes with square brackets, covering exact, starts with, ends with, and contains values, with examples like target and placeholder.

Explore css specificity, from element to class to id, and how it governs overrides; learn when to use the !important rule and how to override with higher specificity.

Learn common CSS properties, including width, height, colors, borders, opacity, and font style, font weight, font size, line height, and font family; use border radius and shorthand for efficient styling.

Explore the box model by examining content, padding, border, and margin, and learn how padding adds space inside a box while margins control spacing between elements.

Learn how box sizing governs element width by comparing content-box and border-box, showing how padding and borders affect total size and how to fix fixed layouts with border-box.

Learn to set margin and padding with one, two, three, or four value shorthands in CSS, controlling the top, right, bottom, and left sides, and border and margin-zero concepts.

Explore units like pixel, rem, em, and percent and how they affect sizing. Understand fixed sizes, root font reference, and inheritance to manage images, text, padding, and margins.

Explore how display and position control how elements render on a page, covering block, inline, and inline-block behaviors, visibility with none, and basic sizing for responsive images.

Compare display none and visibility hidden to learn how they affect layout, where display none removes the element and its spaces, while visibility hidden hides content but keeps the space.

Explore how CSS positioning works, from static flow to relative, absolute, fixed, and sticky. Understand viewport, ancestor dependencies, and how top, left, bottom, right, and z-index control element placement.

Explore how z-index controls stacking of overlapping elements in CSS, using absolute positioning and numeric values to place items on top or behind, with auto as the default.

Learn how to use css pseudo elements and pseudo classes to style elements in different states, including hover and focus, and apply selectors like ::before, ::after, first-child, first-line, and first-letter.

Master responsive design by using media queries to tailor borders, fonts, and layout for mobile, tablet, and desktop. Learn min-width and max-width breakpoints, overriding styles, and organizing responsive css files.

Learn to use viewport height and width (vh and vw) to create full-screen banners and backgrounds, and scale font with calc plus vw for responsive typography across devices.

Build a profile card project in html and css, applying transform, translate, and absolute positioning to center content, style background, and add image, buttons, and social icons.

Learn practical css techniques to style a profiling card by centering images as blocks with margins auto and placing an absolute-positioned overlay inside a container with color, padding, and borders.

Learn to integrate Google fonts into a web page by importing Roboto, applying font families with fallbacks, and adjusting images and text with padding, margins, borders, and alignment.

Style primary and secondary buttons with color, background, borders, padding, and alignment, organize them in a container, and refine hover states and spacing for consistent visuals.

Compare margin auto and text-align center in css, learning when to center the container versus its contents with practical image examples and interview relevance.

Learn how to style a web section with box shadow, borders, and inline blocks. Explore font size, spacing, and color options like rgba and hex to build polished ui components.

Explore icons treated as fonts, add them via a provider, and build a centered social section with LinkedIn, Twitter, Instagram, GitHub, and YouTube icons using size, color, and links.

Learn to refine your interface by exploring color palettes, adjusting margins and gaps, and selecting background colors using free color resources and pattern ideas.

Follow a clear HTML and CSS sequence from head to body to sections and blocks, preserving readability and maintainability as projects grow, using a single stylesheet.

Explore CSS background gradients, including linear and radial types, using degrees and 0 percent to 100 percent color stops, with height and viewport considerations for full-screen visuals.

Learn to style input fields with css: center elements, adjust padding and margins, apply bottom borders, set widths and heights, and style placeholders using attribute selectors in a login form.

Adjust the forgot password form and button by setting font size to 1.3 rem, refining padding, margins, and hover color, then align input with the app palette.

Style the login button with CSS by centering it with margin auto, converting it to a block, and adjusting padding, border radius, background, font color, and weight.

Apply min-width and max-width concepts to control image sizing and layout in CSS, using fixed positioning, pixel dimensions, and responsive adjustments.