Beginning CSS: Cascading Style Sheets for Web Design (Wrox Beginning Guides) - Tapa blanda

Sinopsis

Cascading style sheets (CSS) are the modern standard for website presentation. When combined with a structural markup language such as HTML, XHTML, or XML (though not limited to these), cascading style sheets provide Internet browsers with the information that enables them to present all the visual aspects of a web document. Cascading style sheets apply things such as borders, spacing between paragraphs, headings or images, control of font faces or font colors, background colors and images, textual effects such as underlined or strike-through text, layering, positioning, and a number of other presentational effects. CSS controls the presentational aspects of a web page's design, whereas HTML, XHTML, or XML controls the structure of a web page, which means little more than determining that certain text is a heading, other text is a paragraph, still other text is a list of hyperlinks, and so on. CSS provides enhanced and precise visual rendering; markup languages such as HTML provide meaning and structure.

Beginning CSS: Cascading Style Sheets for Web Design, Second Edition covers all the details required to combine CSS with HTML, XHTML, or XML to create rich, aesthetically powerful designs. Throughout the book, you’ll focus on combining CSS with XHTML specifically because XHTML is the standard hailed by Internet standards bodies as the successor to HTML and the present and future of website design. CSS and XHTML allow a web document to be presented with less code, resulting in a significantly smaller file size and greatly increased ease of maintenance. CSS also enables the presentation of a web document to be centralized, which allows for the look and feel of an entire website to be written and centralized in one or a few simple documents, which makes updating a website a breeze. With only a few simple edits to a single document, the look and feel of an entire website can be completely changed.

By using modern standards like CSS and XHTML, you can drastically reduce the cost of building and maintaining a website when compared to legacy HTML-only pages. You can also greatly reduce the amount of physical bandwidth and hard disk space required, resulting in immediate long-term benefits for any website.

This book also discusses how to style XML documents with CSS—XML being a more advanced markup language with multipurpose applications. XML will play an increasingly larger role in the production of XHTML documents in the future.

This second edition of Beginning CSS features a near-complete overhaul of the content from the first edition. Changes based on what readers had to say about the first edition helped to create the most comprehensive introduction on CSS available on the market. Throughout this book, you see CSS broken down into simple examples that focus on a single concept at a time. This allows you to better understand how and why something works, since you aren't presented with a lot of irrelevant code, and you can better see the bits and pieces that come together that make something work. While these examples may not be particularly pretty, they are extremely valuable learning tools that will help you master cascading style sheets.

To enhance the learning experience, most of the source code examples are presented in syntax-colored code, a special feature in this book. Syntax coloring is a feature that you commonly see in fancy development software, such as Zend Studio (used to develop PHP), or Microsoft's Visual Studio (used to develop ASP, C#, and so on), and other software used by professional programmers every day. Syntax coloring is used in these software suites to make programming easier and more intuitive, and it offers tremendous benefits in teaching as well. It allows you to see what the different bits and pieces are in source code, since each of the different bits and pieces has a different coloring to identify its purpose. It helps you to distinguish the building blocks of code mor

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