HTML elements are the building blocks of HTML pages. With HTML constructs, images and other objects such as interactive forms may be embedded into the rendered page. HTML provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, links, quotes, and other items. HTML elements are delineated by tags, written using angle brackets. Tags such as and directly introduce content into the page. Other tags such as and surround and provide information about document text and may include sub-element tags. Browsers do not display the HTML tags but use them to interpret the content of the page. HTML can embed programs written in a scripting language such as JavaScript, which affects the behavior and content of web pages. The inclusion of CSS defines the look and layout of content. The World Wide Web Consortium (W3C), former maintainer of the HTML and current maintainer of the CSS standards, has encouraged the use of CSS over explicit presentational HTML since 1997.[2] A form of HTML, known as HTML5, is used to display video and audio, primarily using the element, together with JavaScript.
The first version of HTML was written by Tim Berners-Lee in 1993. Since then, there have been many different versions of HTML. The most widely used version throughout the 2000's was HTML 4.01, which became an official standard in December 1999. Another version, XHTML, was a rewrite of HTML as an XML language. XML is a standard markup language that is used to create other markup languages. Hundreds of XML languages are in use today, including GML (Geography Markup Language), MathML, MusicML, and RSS (Really Simple Syndication). Since each of these languages was written in a common language (XML), their content can easily be shared across applications. This makes XML potentially very powerful, and it's no surprise that the W3C would create an XML version of HTML (again, called XHTML). XHTML became an official standard in 2000, and was updated in 2002. XHTML is very similar to HTML, but has stricter rules. Strict rules are necessary for all XML languages, because without it, interoperability between applications would be impossible. You'll learn more about the differences between HTML and XHTML in Unit 2. Most pages on the Web today were built using either HTML 4.01 or XHTML 1.0. However, in recent years, the W3C (in collaboration with another organization, the WHATWG), has been working on a brand new version of HTML, HTML5. Currently (2011), HTML5 is still a draft specification, and is not yet an official standard. However, it is already widely supported by browsers and other web-enabled devices, and is the way of the future. Therefore, HTML5 is the primary language taught in this course.
making a heading
making a line and space
paragraph
making no. of row
making a point on row
making a background color
making a background img
making a world in acenter
making a link of inst. faceb. snapch. gith. yout. etc
making a video of any one
making a color in a font
making a click img and open link
making a file to file
making a all are coming of size of any one
making a audio is coming
making a table in different type
coming that picture or page
CSS is designed to enable the separation of content and presentation, including layout, colors, and fonts.[3] This separation can improve content accessibility;[further explanation needed] provide more flexibility and control in the specification of presentation characteristics; enable multiple web pages to share formatting by specifying the relevant CSS in a separate .css file, which reduces complexity and repetition in the structural content; and enable the .css file to be cached to improve the page load speed between the pages that share the file and its formatting. Separation of formatting and content also makes it feasible to present the same markup page in different styles for different rendering methods, such as on-screen, in print, by voice (via speech-based browser or screen reader), and on Braille-based tactile devices. CSS also has rules for alternate formatting if the content is accessed on a mobile device.[4]
In the ever-evolving world of web development and design, cascading style sheets, or CSS, have played a pivotal role in shaping the aesthetics and functionality of websites. The history of CSS is a fascinating journey that spans several decades, from its humble beginnings to becoming an integral part of modern web development. In this article, we'll delve into the history of CSS, its version history, its relationship with HTML, and provide a detailed CSS history timeline. A Brief History of CSS CSS, or Cascading Style Sheets, first emerged in the early 1990s as a solution to the growing complexity of web design. The web was in its infancy, and designers were limited in their ability to control the appearance of web pages. Web content was mostly text-based, and HTML (HyperText Markup Language) was the primary tool for structuring web documents. However, as the demand for more visually appealing websites grew, the need for a dedicated styling language became apparent. This gave birth to the concept of CSS. In 1994, Hakon Wium Lie, a Norwegian web pioneer, and Bert Bos, a Dutch programmer, proposed the first CSS specification. Their vision was to separate content (HTML) from presentation (CSS), thus simplifying web development and making it more flexible. The difference between HTML and CSS lies in their roles: HTML structures web content, while CSS styles and formats that content.
making a background img with a gogle
making a any thing in a center
making a change text color
when the class name any thing
we have to do all style then useing
when the id name write to give
all change of tag
we use division tag all are change style
take color in another way
change a font style writting..
making a animation in a forward
coming in line
taking all in body at a main tag
all are moving in padding tag
all are in a box that move
margin right
box border in any type use
at top
at bottom
at left all take height width same px