Using Style

css style

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X/HTML specifies four ways to apply style variations:

• Linking
• Importing
• Embedding
• Inline

The first two methods refer to external style sheets (text files that use the .css file name extension and contain nothing but style definitions), Which allow you to use styles across multiple Web pages. The third method defines styles for a single page. The third method defines styles for a single page. The fourth method makes quick, temporary style changes to existing X/HTML code, such as spanning a background color or an image behind words.

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Three Ways to Use CSS

• External
• Internal(Embedding)
• Inline

CSS

Cascading Style Sheets

A predefined HTML document structure that includes heading fonts, text layout commands, graphic object placement and other design guidelines.

A style is set of formatting instructions that allow you to define the formatting of X/HTML elements in a document or modify the characteristics of some elements. For example, the heading tags represent various styles: Heading level one is bold, Times New Roman 24-point typeface by default; heading level 4 is bold, Times new 12-point typeface. You can change these and other style attributes in your web pages. You can also control margins, line spacing and placement of design elements, as well as specify colors, fonts and point sizes. CSS code is very easy for creating css websites.

Imagine that your Web page has 12 different level-two headings that you want to appear in red. In the past, you may have added 12 pairs of tags around the 12 headings. What if you wanted to try blue headings? You would have to do a considerable amount of recoding. With style sheets, however, you can add just a few lines of code, then change the colors of all the headings with a single word.

Cascading style sheets refer to the use of multiple style definitions in a single document. CSS is the standard way to format a Web page. A style sheet file can link to every document in a Web site, thus controlling the overall look and feel of the site. However, within the same file a "spanned" style can also override the style information embedded in the header block, along with any style information from the linked style sheet. The term "cascading" refers to inheritance, or the hierarchical relationship between linked, imported, embedded and inline styles.CSS programming is very important for css website.

HTML Markup Language

HTML as a Markup Language

html for image

HTML is a subset of SGML (Standard General Markup Language) with more forgiving rules that are not followed for XHTML and XML (also subsets).

A markup language is very different from a programming language. Program files and data files exist separately in traditional applications. In a markup language, the instructions and the data reside in the same file. In addition, HTML does not provide data structures or internal logic, as do programming languages such as C and Pascal.

HTML is an application of SGML. It has fewer language elements than SGML, it is easier to use and has become the standard method of encoding information for Web documents. As with GML, HTML facilitates data exchange through a common document format across different types of computer systems and networks on the Web.

Tags of html

Whereas SGML is used specifically to define context as opposed to appearance, HTML has evolved into both a contextual and a formatting language. By applying a heading style to text using HTML, for example, you are not only marking that text contextually as an important line that begins a new section; you are also applying the visual formatting elements of boldface and a larger font size. Table in html

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HTML Tags

Tags in html

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Special places of code, enclosed in angle brackets, that tell the HTML interpreter how to process or display text.

HTML files are plain text files that have been "marked up" with special language elements called tags, which are embedded in the text.

Tags are pieces of code text, enclosed in angle brackets(< >), that provide instructions to programs designed to interpret HTML. For example, you might want to change the color of some text in your file. You can do this by embedding opening and closing tags with instructions around the text you wanted colored. If you want an image to appear in your document, you can use a tag to specify the source and placement of the image.

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Define HTML

What is HTML?

Hypertext Markup Language, a standardized system for tagging text files to achieve font, color, graphic, and hyperlink effects on World Wide Web pages.

Hypertext Markup Languages (HTML) is based on SGML and is the traditional authoring language used to develop Web pages for many applications. Tim Berners-Lee of the Massachusetts Institute of Technology invented HTML with Colleagues from CERN (the European Particle Physics Laboratory) as a means of distributing nonlinear text, called hypertext, to multiple points across the Internet. One document links to another through pointers called hyperlinks. A hyperlink is an embedded instruction within one text file that calls another file when the link is accessed, usually by the click of a mouse. The global set of linked documents across the existing Internet framework grew into what is now known as the World Wide Web.

Hypermedia is an extension of hypertext. It includes images, video, audio, animation and other multimedia data types, which can be incorporated into HTML documents. The Web can be described accurately as a hypermedia system.

Hypertext was first conceived by Ted Nelson in 1965. The first widely commercialized hypertext product was HyperCard, conceived by Bill Atkinson and introduced by Apple Computer in 1987. It incorporated many hypertext and hypermedia concepts, but was a proprietary system that worked only on Macintosh computers.

In contrast, HTML is a cross-platform language that works on Windows, Macintosh and UNIX platforms. In addition, HTML and the Web are client/server systems; HyperCard works only on a stand-alone Macintosh computer.

Used for web page design html.

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