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![CSS3 Selectors
• - Attribute selectors: input[type='text']
• - Pseudo-classes: :hover, :first-child
• - Pseudo-elements: ::before, ::after
• These allow precise targeting of elements.](https://image.slidesharecdn.com/html5css3detailed-251210110914-bb2695b5/75/TOPIC-HTML5_CSS3_Detailed-web-technology-pptx-13-2048.jpg)
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TOPIC HTML5_CSS3_Detailed web technology.pptx
- 1. HTML5 and CSS3 •Comprehensive Guide with Types and Explanations
- 2. Introduction to HTML5 •- HTML5 is the latest version of HyperText Markup Language. • - It structures content on the web. • - Provides semantic elements, multimedia, graphics, and APIs.
- 3. Key Features ofHTML5 • - Semantic Elements: header, nav, article, section, footer. • - Multimedia: audio and video tags. • - Graphics: canvas and SVG support. • - Forms: New input types (email, date, color, range). • - APIs: Geolocation, Drag-and-Drop, Offline storage.
- 4. HTML5 Document Structure •<!DOCTYPE html> • <html> • <head> • <title>HTML5 Page</title> • </head> • <body> • <header> • <h1>Welcome</h1> • </header>
- 5. Semantic Elements inHTML5 • - <header>: Defines header section. • - <nav>: Defines navigation links. • - <article>: Independent piece of content. • - <section>: Groups related content. • - <footer>: Footer section. • These make code easier to read and improve SEO. (Search Engine Optimization )
- 6. HTML5 Multimedia • -<audio> for audio playback. • - <video> for video playback. • - No plugins needed (like Flash). • Example: • <video controls> • <source src='movie.mp4' type='video/mp4'> • </video>
- 7. HTML5 Graphics • -Canvas: 2D drawing via JavaScript. • - SVG: Scalable Vector Graphics for shapes/images. • Example: • <canvas id='myCanvas'></canvas>
- 8. HTML5 Forms • -New input types: • • email • • url • • date • • number • • range • - Form validation built-in. • Example:
- 9. HTML5 APIs • -Geolocation API: Track user location. • - Web Storage: localStorage, sessionStorage. • - Offline Applications with AppCache. • - Drag and Drop API. • - Web Workers for background tasks.
- 10. Introduction to CSS3 •- CSS3 is the latest version of Cascading Style Sheets. • - Used to style and format HTML elements. • - Provides advanced layouts, animations, and responsive design.
- 11. Key Features ofCSS3 • - Selectors: Advanced attribute and pseudo- classes. • - Colors: RGBA, HSLA, gradients. • - Borders: Rounded corners, shadows. • - Transitions & Animations. • - Flexbox and Grid. • - Media Queries for responsive design.
- 12. Types of CSS •1. Inline CSS → Written inside the HTML tag. • Example: <p style='color:red;'>Text</p> • 2. Internal CSS → Written inside <style> tag in the HTML file. • 3. External CSS → Written in a separate .css file and linked using <link> tag.
- 13. CSS3 Selectors • -Attribute selectors: input[type='text'] • - Pseudo-classes: :hover, :first-child • - Pseudo-elements: ::before, ::after • These allow precise targeting of elements.
- 14. CSS3 Colors &Backgrounds • - RGBA and HSLA colors. • - Gradients (linear, radial). • - Multiple background images. • - Example: • body { background: linear-gradient(to right, blue, lightblue); }
- 15. CSS3 Borders &Effects • - Border-radius: Rounded corners. • - Box-shadow: Drop shadows. • - Text-shadow: Shadow effects on text.
- 16. CSS3 Transitions andAnimations • - Transitions: Smooth changes. • Example: • div { transition: all 0.5s ease; } • - Animations with keyframes. • Example: • @keyframes fadeIn { from {opacity:0;} to {opacity:1;} }
- 17. CSS3 Layouts • -Flexbox: One-dimensional layout system. • - Grid: Two-dimensional layout system. • - Helps design responsive and complex layouts easily.
- 18. CSS3 Media Queries •- Used for responsive web design. • - Adjusts layout based on device size. • Example: • @media screen and (max-width:600px) { • body { font-size:14px; } • }
- 19. HTML5 + CSS3Together • - HTML5 defines content structure. • - CSS3 styles and layouts the content. • - Together, they build modern, interactive, and responsive websites.
- 20. Advantages of HTML5& CSS3 • - Cross-browser and cross-platform support. • - Rich multimedia without plugins. • - Faster page load and better performance. • - Improved SEO and accessibility. • - Enhanced user experience.
- 21. Summary • - HTML5:Semantic tags, multimedia, forms, APIs. • - CSS3: Advanced styles, effects, layouts, responsive design. • - Both together create modern websites.
- 22. Thank You • Questions? •Practice HTML5 & CSS3 to master web development!