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4.02 Vocab
| Term | Definition |
|---|---|
| <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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