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4.02 Vocab

TermDefinition
<div> tag A division or a section in an HTML document. Is used to group block element to format them with CSS, can be nested; meaning a tag contained within a tag.
<table> tags Should not be used for layout; tables are intended for presenting tabular data.
<header> tag Specifies a header for a docment or section
<header> element Should be used as a container for introductory content
<footer> tag defined a footer for a document or section
<footer> typically contains the author of the document, copyright information, links to terms of use, contact information, etc.
<nav> tag defines a set of naigation links; only intended for a major block of nagigative links
Device Pixels The smallest element on a screen; also known as physical pixel.
Screen density or pixel density The number of device pixels on a physical surface. it is often measured in pixels per inch (PPI)
Resolution A simple count of the number of pixels across the entire width and height of a device
Viewport the rectangular area )measured in pixels) that is viable on a device screen
Mobile accessiblity Making websites and application more accessible to people with disabilities when they are using mobile devices
Reference pixel A new pixel that should look exactly the same in all viewing situations
Responsive Web Design RWD takes existing techniques involving flexible grid layout, flexible images, and media and media queries creating a unified approach to web design.
Fixed width layout Has a wrapper (or container) that is a fixed width, and the components inside it have either percentage widths or fixed widths.
Fluid or liquid layouts Define dimensions in percentages rather than pixels.
Absolute units Include em (front size of the element)- recommended for screen or print.
(percent) recommended for screen or print
Em a unit of measurement in the field of typography, equal to the currently specified point size, equal to the default size of 16px
Bitmap pixel The smallest unit of data in a raster image
CSS pixel A unit of measurement for web pages
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