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Stands for "Cascading Style Sheet." Cascading style sheets are used to format the layout of Web pages. They can be used to define text styles, table sizes, and other aspects of Web pages that previously could only be defined in a page's HTML.
1) In programming, code (noun) is a term used for both the statements written in a particular programming language - the source code , and a term for the source code after it has been processed by a compiler and made ready to run in the computer - the object code .
To code (verb) is to write programming statements - that is, to write the source code for a program.
2) In cryptography, code has both a specific technical meaning and a general meaning. In the technical sense, code is the substitution of one word or phrase by another word, number, or symbol for the purpose of concealing the original word or phrase. Basically, it's substitution at the word or phrase level. In industry, a developing product is sometimes given a code name to conceal its probable marketing name. Historically, military operations have often had a code name while in the preparation stage. In World War Two, Germany's invasion of the Soviet Union was given the code name of Barbarossa. Code in this sense is sometimes confused with a cipher , which is substitution of symbols at the letter level. Modern cryptography is much more concerned with ciphers than with code in its limited technical meaning.
Code is often used generally to mean any kind of concealed writing, including ciphers. "Breaking the code" usually means the discovery of a way to read one or a series of encrypted messages without being given the key to decrypt them.
HTML (Hypertext Markup Language) is the language used to create webpages. "Hypertext" refers to the hyperlinks that an HTML page may contain. "Markup language" refers to the way tags are used to define the page layout and elements within the page.
The first line defines what type of contents the document contains. "<!doctype html>" means the page is written in HTML5. Properly formatted HTML pages should include <html>, <head>, and <body> tags, which are all included in the example above. The page title, metadata, and links to referenced files are placed between the <head> tags. The actual contents of the page go between the <body> tags.
NOTE: Many dynamic websites generate webpages on-the-fly, using a server-side scripting language like PHP or ASP. However, even dynamic pages must be formatted using HTML. Therefore, scripting languages often generate the HTML that is sent to your web browser.
Below is an example of HTML used to define a basic webpage with a title and a single paragraph of text.
<p>This is an example of a paragraph in HTML.</p>
return a + b;
var total = sum(7,11);