Download Designing with Progressive Enhancement: Building the Web by Todd Parker, Scott Jehl, Maggie Costello Wachs, Patty Toland PDF

By Todd Parker, Scott Jehl, Maggie Costello Wachs, Patty Toland

Revolutionary enhancement is an method of net improvement that goals to convey the absolute best event to the widest attainable viewers, and simplifies coding and trying out in addition. no matter if clients are viewing your websites on an iPhone, the newest and maximum high-end process, or perhaps listening to them on a screen-reader, their event may be effortless to appreciate and use, and as fully-featured and practical as attainable.  Designing with revolutionary Enhancement will convey you the way. It’s either a pragmatic advisor to realizing the rules and merits of innovative enhancement, and a close exploration of examples that might educate you—whether you’re a dressmaker or a developer—how, the place, and while to enforce the explicit coding and scripting ways that embrace revolutionary enhancement.  In this ebook, you’ll study:  Why universal coding methods depart clients at the back of, and the way revolutionary enhancement is a extra inclusive and available alternative How to investigate complicated interface designs, see the underlying semantic HTML event that might paintings all over, and layer on complicated improvements safely A exact browser features trying out suite that is helping convey improvements in basic terms to units which may deal with themReal-world top practices for coding HTML, CSS, and JavaScript to paintings with innovative enhancement, and situations the place forward-looking HTML5 and CSS3 innovations may be utilized successfully todayHow to consider accessibility positive factors like WAI-ARIA and keyboard aid to make sure common entry  Detailed suggestions to remodel semantic HTML into interactive elements like sliders, tabs, tree controls, and charts, besides downloadable jQuery-based widgets to use without delay on your tasks

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26 Designing wit h Prog r essive en h a n cemen t: Buil D i ng the w e B t h at wo rks fo r e ve ryo ne The first two sections—Ship To and Gift Options—include no dependencies, and they logically fit together, so we’ll combine these two sections into the first step in our basic experience: Figure 2-10 the first two sections of the enhanced form (left) are grouped into the first step of a multi-screen checkout wizard for the basic experience (right). The enhanced design for the Gift Options section calls for custom select menus for the gift-wrap and gift-card fields, in order to provide thumbnail images for each option.

Armed with a better understanding of how HTML markup, well defined CSS, and unobtrusive JavaScript work together, we’ll then take an in-depth look at the capabilities test in Chapter 6, and see how it uses the above principles and approaches to enable a more reliable progressive enhancement experience. Putting theory into action The next several chapters attempt to condense and highlight the best practices you need to know to successfully implement progressive enhancement on real-world client projects.

C ha Pte r o ne : o u r a PProac h 5 We immediately shied away from browser sniffing for several reasons: C Effective sniffing requires meticulous knowledge of each browser’s behaviors (and all its versions’ variations), making maintenance of this script a large, complicated, and ongoing challenge. C By definition, it’s not future-compatible. You can only sniff for browsers that exist today; if a new browser is released tomorrow that is capable of the enhanced experience, it will be locked out until it’s added to the list.

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