Welcome to the companion website to accompany Basics of Web Design HTML5 CSS3, Third Edition by Terry FelkeMorris. Find out for yourself why Learning PHP, MySQL, JavaScript, CSS HTML5 is the numberone bestselling blockbuster that has been at the top of the charts for over five. A Book Apart, HTML5 For Web Designers. HTML5 isnt as confusing as it once was, but it still isnt straightforward. Its an evolutionary, rather than revolutionary, change in the ongoing story of markupand if youre currently creating websites with any version of HTML, youre already using HTML5. Harness the power of this essential evolving spec with help from Jeremy Keith and Rachel Andrew. Brush up on syntax and updated elements, and get ready to work with. Through clear, practical examples, youll be up to speed in no time. Whats new in the second editionA lot has changed since this little book was first published. Cowritten and introduced by Rachel Andrew, the second edition highlights exactly how to implement those changes. From wrangling Java. Script APIs to revisiting the canvas and managing rich media, this updated original continues to be the perfect primer. Html5 Web Author Edition' title='Html5 Web Author Edition' />HTML5 comes to our rescue with the ltfooter element, allowing us to add semantically separate information about the quote. For example ltblockquote ltpYou know the. NEW PERSPECTIVES HTML5 AND CSS3 COMPREHENSIVE, 7E teaches readers how to build effective websites using realworld case scenarios. Students master techniques and. Web Storage Second EditionThis specification defines an API for persistent data storage of key value pair data in Web clients. This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3. C publications and the latest revision of this technical report can be found in the W3. C technical reports index at. TR. By publishing this Recommendation, W3. C expects the functionality specified in this Recommendation will not be affected by changes to Web IDL as the Web. IDL specification proceeds to Recommendation. During Proposed Recommendation review it was noted that the mitigation advice for DNS spoofing attacks Section 7. Accordingly, a non normative change was made to that sentence to encourage the use of TLS. This document has been reviewed by W3. C Members, by software developers. W3. C groups and interested parties, and is endorsed by the. Director as a W3. C Recommendation. It is a stable document and may be used. W3. Cs role in making. Recommendation is to draw attention to the specification and to. This enhances the functionality and. Web. This section is non normative. This specification introduces two related mechanisms, similar to. HTTP session cookies, for storing name value pairs on the client. COOKIESThe first is designed for scenarios where the user is carrying. Cookies dont really handle this case well. For example, a user. If the site used cookies to keep track of which ticket. To address this, this specification introduces the session. Storage IDL attribute. Sites can add data to the session storage, and it will be accessible. For example, a page could have a checkbox that the user ticks to. Storage. insurance checked I want insurance on this trip. A later page could then check, from script, whether the user had. Storage. insurance. If the user had multiple windows opened on the site, each one. The second storage mechanism is designed for storage that spans. In. particular, Web applications may wish to store megabytes of user. Again, cookies do not handle this case well, because they are. Each site has its own separate storage areas. All diagrams, examples, and notes in this specification are. Everything else in this specification is normative. The key words MUST, MUST NOT, REQUIRED, SHOULD, SHOULD NOT, RECOMMENDED, MAY, and. OPTIONAL in the normative parts of this document are to be. RFC2. 11. 9. For readability, these words do. RFC2. 11. 9Requirements phrased in the imperative as part of algorithms. Some conformance requirements are phrased as requirements on. Such requirements are to be. Conformance requirements phrased as algorithms or specific steps. In particular, the algorithms defined in this. The only conformance class defined by this specification is user. User agents may impose implementation specific limits on. When support for a feature is disabled e. For example, if a particular. Web IDL interface, the. This specification relies on several other underlying. The construction a Foo object, where. Foo is actually an interface, is sometimes. Foo. The term DOM is used to refer to the API set made available to. Web applications, and does not necessarily imply the. Document object or of any other. Node objects as defined in the DOM. DOMAn IDL attribute is said to be getting when its value is. The term Java. Script is used to refer to ECMA2. ECMAScript, since the term Java. Script is more. widely known. ECMA2. 62Each Storage object provides access to a list of. Keys are. strings. Any string including the empty string is a valid. Values are similarly strings. Each Storage object is associated with a list of. Storage and local. Storage attributes. Multiple. separate objects implementing the Storage interface can. The length. attribute must return the number of keyvalue pairs currently. The keyn method must return the name of the. The order of keys is. Thus, adding or removing a key may change the. If n is greater than or equal to the number of keyvalue pairs. The supported property names on a. Storage object are the keys of each keyvalue pair. The get. Itemkey method must return. If the given key does not exist in the list associated with the. The set. Itemkey, value method. If it does not, then a new keyvalue pair must be added to the. If the given keydoes exist in the list, and its value is not. If its previous value is equal to value, then. If it couldnt set the new value, the method must throw a Quota. Exceeded. Error. exception. Setting could fail if, e. The remove. Itemkey method must cause the keyvalue. If no item with that. The set. Item and remove. Item methods must be. In the case of failure, the method. That is, changes to the data storage area must either. The clear. method must atomically cause the list associated with the object to. If there are. none, then the method must do nothing. When the set. Item, remove. Item, and clear methods are invoked, events. Window objects of other Documents that can access the. Storage and local. Storage attributes. This specification does not require that the above. Only consistency in what different scripts accessing the same. The session. Storage. Each top level browsing context has a unique set of. User agents should not expire data from a browsing contexts. UA detects that it has limited. User agents should always. When a top level browsing context is destroyed and. API. described in this specification provides no way for that data to. The lifetime of a browsing context can be unrelated. When a new Document is created in a browsing. If it does, then that is the. Documents assigned session storage area. If it does. not, a new storage area for that documents origin must. Documents. assigned session storage area. A Documents assigned. Document. In the case of an iframe being moved to another. Document, the nested browsing context is destroyed and a new one created. The session. Storage. Storage object associated with. Documents assigned session storage area, if any. Each Document object must. Windows session. Storage attribute. When a new top level browsing context is created by. When a new top level browsing context is created by a script in an existing browsing context, or by the user. Document, and the creation is not a new start for session storage, then. Document must be copied. From that point on, however, the two session. When the set. Item, remove. Item, and clear methods are called on a Storage object x that is associated with a session storage area, if the methods did not throw an. Document object whose. Window objects session. Storage attributes. Storage object is associated with the same storage area, other than x, send a storage notification. User agents must have a set of local storage areas, one for each. User agents should expire data from the local storage areas only. User. agents should always avoid deleting data while a script that could. When the local. Storage. Storage object. initialization steps When the set. Item, remove. Item, and clear methods are called on a Storage object x that is associated with a local storage area, if the methods did not throw an. Document object whose. Window objects local. Storage attributes. Storage object is associated with the same storage area, other than x, send a storage notification. Whenever the properties of a local. Storage attributes. Storage object are to be examined, returned, set, or. Apollo Hardwell Zippy more. Storage interface, the user agent must first. The storage event is fired on a Documents.