Responsive Web Design
Download as PPTX, PDF20 likes2,832 views
Responsive web design (RWD) involves optimizing images and layouts for different screen sizes to provide an easy viewing experience across devices. As mobile devices are increasingly used to access the internet, responsive design ensures usability regardless of whether someone is on a phone, tablet, or desktop computer. Key techniques include using relative font sizes and fluid grids that flow and adapt to different screen widths, as well as media queries to load different CSS styles for specific screen sizes. Frameworks like Sencha.io and JavaScript libraries can also help serve responsive content to older browsers.
Responsive Web Design
- 1. Understanding Responsive Web Design Chiheb Chebbi Chiheb-chebbi@tek-up.de
- 2. What is responsive design? Responsive web design (RWD) is an approach to web design with a strong emphasis on image viewing experience to make reading easier and minimize: Resizing , panning, and scrolling for “simpler” navigation. This common set of best user experience practices can be applied to a wide range of devices, including mobile phones and desktop computers
- 3. Why responsive design? Next Year Phones and Tablets will overtake Desktop Computer as the primary way people get Online
- 4. Fonts Ems Percentages Rems The best way to implement a responsive font size is to use: Is relative to parent's font size, eg. 2em = 28px if parent element's font-size is 14px. percentages are resizeable units for font size, and their CSS declarations can be inherited is relative to the html element's font-size. Typography is one of the most important aspects of responsive web design
- 5. img { max-width: 100%; height: auto; } Fluid Images One way around this is to size images in relative units, rather than absolute pixel dimensions. The most common relative solution is to set the max-width at the image at 100% and the data-fullsrc attribute
- 6. Fluid Grids “A fluid is a substance that continually deforms (flows) under an applied shear stress” – Wikipedia Regardless of what the device or screen size is, components in fluid designs are going to flow and adapt to the user environment.
- 7. Media Queries <link rel="stylesheet" media="screen and (max-width: 640px)" href="smallscreen.css" type="text/css" /> Target specific screen sizes with Different styles You can change styles depending on : Height and width of the browser Screen resolution Orientation of the device
- 8. In a fluid website layout, also referred to as a liquid layout, the majority of the components inside have percentage widths, and thus adjust to the user’s screen resolution Fixed-width layouts Liquid layouts A fixed website layout has a wrapper that is a fixed width, and the components inside it have either percentage widths or fixed widths.
- 9. Elastic layouts Hybrid layouts There are hybrid layouts, which combine the characteristics of two or more of the layouts discussed It works by sizing all elements with em‘s.
- 10. The advantages of grid layouts are numerous : • Gives order, originality, and harmony to the presentation of content; • Allows users to predict where to find the information they need • Makes it easier to add new content without having it looking disjointed or marginalized. Custom Grid Layouts
- 11. <div id="wrapper"> <div id="header">Header</div> <div id="content">Content</div> <div id="sidebar">Sidebar</div> <div id="footer">Footer</div> </div> Code Example:
- 12. Sencha.io Src? Sencha.io Src helps you dynamically resize images for the ever increasing number of mobile screen sizes.
- 13. Here are three JavaScript solutions that can help us serve responsive websites to older browsers lacking CSS3 support: JavaScript Solutions Respond.js Modernizr Adaptive.960.js
- 14. Thank you