Building Responsive Websites with the Bootstrap 3 Framework
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The document is a presentation on building responsive websites using the Bootstrap 3 framework, highlighting the importance of mobile-friendly design and the increasing web traffic from mobile devices. It covers responsive design principles, Bootstrap features, and provides an overview of its grid system, media queries, and customization options. Additionally, the presenters offer insights on mobile-first strategies and invite attendees to ask questions and seek further assistance from Webvanta.
Building Responsive Websites with the Bootstrap 3 Framework
- 1. Building Responsive Websites with the Bootstrap 3 Framework Michael Slater and Charity Grace Kirk michael@webvanta.com 888.670.6793 1
- 2. Today’s Presenters Michael Slater ‣ President and Cofounder of Webvanta ‣ Has been creating content-rich websites since the web’s early days ‣ Previously director of technology strategy at Adobe Systems Charity Grace Kirk ‣ Senior web developer at Webvanta ‣ More than 5 years experience building sites for clients on the Webvanta platform ‣ Experience in content strategy, search engine optimization, and online marketing. 2
- 3. Asking Questions Now • Ask questions by entering the text in the GoToWebinar control panel Later • Follow up with us afterwards (sales@webvanta.com) if you have questions that didn’t get addressed • Link to slides, video, and code will be emailed to you tomorrow 3
- 4. What is Your Role in Building Websites? • Designer • Developer • Manager 4
- 6. Adapt to a wide range of screen sizes http://www.tempeazdentist.com 6
- 7. Desktop-focused sites are hard to use on phones 7
- 8. Google encouraging responsive design Searches on mobile phones should link to mobile-friendly content 8
- 9. How much of your browsing is on a phone or tablet? • None • Less than 10% • 10% to 40% • About half • More than half 9
- 10. Mobile is Exploding! Mobile devices (phones and tablets) ‣ Now account for ~20% of all web traffic ‣ Higher for restaurants, hotels Black Friday mobile traffic ‣ Up 34% from last year, sales up 43% ‣ 21.6% of all online sales from mobile 10
- 11. The Mobile Site Alternative jQuery Mobile with Server-side mobile detection http://arthistory.berkeley.edu 11
- 12. Responsive Design Basics • Uses CSS Media Queries • More than just fluid design ‣ Columns can stack at smaller widths ‣ Sizes, padding, margin … all can adjust ‣ Elements can be hidden or swapped out 12
- 13. CSS Media Queries For Example: @media (min-width: 440px) and (max-width: 767px) { h1.logo { text-align: center; } rule will only apply to screens .subtitle { 440px wide to 767 px wide display: none; } } 13
- 14. Media Query Browser Support • Chrome, Firefox, Safari, Opera ‣ All reasonably recent versions • IE10 fully supported • IE9: except for a few CSS enhancements • IE8: requires respond.js and html5shiv.js • IE7: not officially supported, but “should look and behave well enough” 14
- 15. Why Bootstrap? Speed up development ‣ Responsive grid system ‣ Quality default typography ‣ Common components ‣ Popular jQuery plugins ‣ Simplifies “bootstrapping” your design 15
- 16. What is Bootstrap? • Created by Twitter, published as open source • Consists of a CSS file, a JS file, and an icon font • CSS is compiled from LESS source • JS can be loaded in “everything” version or only selected pieces ‣ Requires jQuery 16
- 17. Mobile-First Strategy Content • Determine what is most important Layout • Design to smaller widths first • Base CSS addresses phones; media queries for tablet and desktop Progressive enhancement • Add elements as screen size increases 17
- 18. Bootstrap Break Points /* Extra small devices (“phones”, less than 768px) */ /* No media query need as this is the default Bootstrap */ /* Small devices (“tablets”, 768px and up) */ @media (min-width: 768px) { ... } /* Medium devices (“desktops”, 992px and up) */ @media (min-width: 992px) { ... } /* Large devices (“large desktops”, 1200px and up) */ @media (min-width: 1200px) { ... } 18
- 19. Responsive Grid • Standard grid is 12 columns wide • Fluid by default, then 3 fixed widths design width max column fluid 750px 970px 1170px 100% 60px 78px 95px 19
- 20. Basic Grid Structure • <div class=“container”> ‣ <div class=“row”> • <div class=“col-*-*”></div> • <div class=“col-*-*”></div> ‣ </div> ‣ <div class=“row”>… </div> • <div class=“container”> ‣ ... 20
- 21. Example 1 understanding .col-md-* See grid.html 21
- 22. Controlling the Grid • Each breakpoint has its own grid class ‣ .col-xs-*, .col-sm-*, .col-md-*, .col-lg-* • Below the smallest defined breakpoint for a column, it stacks vertically 22
- 23. Example 2 easy column scaling up and down See grid2.html 23
- 24. Ordering the Grid • Push and Pull columns to position on larger widths. ‣ e.g. .col-md-push-* or .col-md-pull-* 24
- 25. Example 3 easy column positioning See grid3.html 25
- 26. Responsive Images • Background Images in CSS ‣ Can load appropriate-size image based on viewport size (via media queries) • Images in HTML (<img src="filename.jpg">) ‣ Class .img-responsive sets max-width to 100% ‣ Browser scales images to fit container, but doesn’t allow them to get pixelated 26
- 27. Helper Classes • Bootstrap includes a variety of CSS classes to help make markup more semantic ‣ pull-left, pull-right ‣ center-block, text-right, text-center … ‣ clearfix ‣ visible-xs, hidden-xs, visible-md … 27
- 28. Navigation Vertical Toggle Nav Horizontal Nav http://www.wchealth.org 28
- 29. JavaScript Features • Many common JavaScript-based plugins and functions included ‣ Carousel, transitions ‣ Modal, alert ‣ Dropdown, tab, tooltip, popover, button ‣ Collapse ‣ Scrollspy 29
- 30. JavaScript without JavaScript • CSS classes and HTML5 data attributes used to trigger behavior • Bootstrap JS file finds these attributes and uses them to active JS and CSS code 30
- 32. Visual Components • Icon library • Buttons • Breadcrumbs • Pagination • Navbar • Progress bar • ... and more 32
- 33. Does Bootstrap seem like a good fit for you? • No (don’t plan to support mobile) • No (plan to support mobile differently) • Probably, I need to learn more • Yes, I can’t wait! 33
- 34. Customizing • Add your own CSS file after the Bootstrap file to override and add classes • Can edit source LESS files and recompile into customized CSS ‣ Upgrading to new Bootstrap version can be difficult 34
- 35. Other Responsive Frameworks • Foundation (foundation.zurb.com) • Skeleton (getskeleton.com) 35
- 37. Webvanta SmartTheme • Gives you an instant start • Fully hosted, all code in place • Integrate with database-driven content • The fast way to a powerful, custom and responsive site • Join our January webinar 37
- 38. What are your major questions? • Let us know what more you’d like to know and we’ll use it to guide our upcoming articles and webinars 38
- 39. We’re Here to Help • Webvanta specializes in creating content-rich sites that deliver on business goals • Get your private consultation ‣ Free 30-minute consultation ‣ email sales@webvanta.com or call 888.670.6793 • Learn more online and stay in touch ‣ www.webvanta.com/blog ‣ www.facebook.com/webvanta 39
- 40. 241 South Main Street Sebastopol, CA 95472 sales@webvanta.com 888.670.6793 www.webvanta.comt 40