1. Before reading the text watch a video Read the text and do exercises a lans (Local Area Networks) Networking

B Basic elements

Some of the basic elements that can be found on a web page are:

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  Text, which may be displayed in a variety of sizes, styles and fonts
  
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  Links, connections from text or graphics on the current web page to different parts of the same page, to other web pages or websites, or to external files
  
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  Graphics, pictures created with formats such as JPEG (Joint Photographic Experts Group), which is ideal for pictures with a wide range of colors, e.g. photographs, and GIF (Graphical Interchange Format), which is good for pictures with fewer colors or with large areas of the same color, e.g. buttons, banners and icons.
  
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  Tables, intended for the display of tabular data, but often used to create page layouts
  
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  Frames, subdivision of a web page allowing the display of different HTML documents on the same page.
  

Instructions for the presentation, the styling of elements on a page such as text or background color, can be included in the HTML code. However, it is becoming more common to use CSS (Cascading Style Sheets) to separate style from content. This makes pages easier to maintain, reduces download time and makes it easy to apply presentation changes across a website.