RGB (Red, Green, Blue)

Css Color

Colors in CSS are most often specified by:

• a valid color name - like "red"
• an RGB value - like "rgb(255, 0, 0)"
• a HEX value - like "#ff0000"

Note: Color names are case-insensitive: "Red" is the same as "red" or "RED".

RGB (Red, Green, Blue)

RGB color values can be specified using this formula: rgb(red, green, blue).

Each parameter (red, green, blue) defines the intensity of the color between 0 and 255.

For example, rgb(255,0,0) is displayed as red, because red is set to its highest value (255) and the others are set to 0. Experiment by mixing the RGB values

Hexadecimal Colors

RGB values can also be specified using hexadecimal color values in the form: #RRGGBB, where RR (red), GG (green) and BB (blue) are hexadecimal values between 00 and FF

(same as decimal 0-255).

For example, #FF0000 is displayed as red, because red is set to its highest value (FF) and the others are set to the lowest value (00). 

Note: HEX values are case-insensitive: "#ff0000" is the same as "FF0000".
this is very important for css because color are use in css many times.
therefore read this chapter two three time for making color schemes ................

COMPUTER LANGUAGE

COMPUTER LANGUAGE

• Programming language, a formal language designed to communicate instructions to a machine, particularly a computer .
• Command language, a language used to control the tasks of the computer itself, such as starting other programs
• Machine language or machine code, a set of instructions executed directly by a computer's central processing unit
• Markup language, a grammar for annotating a document in a way that is syntactically distinguishable from the text, such as HTML
• Style sheet language, a computer language that expresses the presentation of structured documents, such as CSS
• Configuration language, a language used to write configuration files
• Construction language, a general category that includes configuration languages, toolkit languages, and programming languages
• Query language, a language used to make queries in databases and information systems
• Modeling language, a formal language used to express information or knowledge, often for use in computer system design