HTML colors are specified with predefined color names, or with RGB, HEX, HSL, RGBA, or HSLA values

RGB

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

black color is represented in RGB by

white color is represented in RGB by

red color is represented in RGB by

green color is represented in RGB by

blue color is represented in RGB by

In HTML, a color can be specified using a hexadecimal value in the form: #rrggbb

Where rr (red), gg (green) and bb (blue) are hexadecimal values between 00 and ff (same as decimal 0-255)

To display white, set all color parameters to 00, like this: #000000

To display black, set all color parameters to ff, like this: #ffffff

hsl(hue, saturation, lightness)

Hue is a degree on the color wheel from 0 to 180

Saturation is a percentage value, 0% means a shade of gray, and 100% is the full color

Lightness is also a percentage value, 0% is black, and 100% is white

An HTML iframe is used to display a web page within a web page

An iframe can’t be used as the target frame for a link.

The target attribute of the link must refer to the name attribute of the iframe

The HTML … element is a container for the following elements: <title>, <style>, <meta>, <link>, <script>, <base>

… element is a container for metadata