REVISION

REVISION

1. HTML

   • World Wide Web
     • Stored on web servers all over the world, there are no central storage servers
     • Huge collection of websites
       • Each website containts web pages which you get to via hyperlinks
         • Each contain different information
       • Web browser is used to access or request information
     • Enables the retrieval of text and media to your computer
       • This system would allow others to link their documents together to create a web of interconnected documents.
   • Hyper Text Markup Language
   • Internet created by Tim Berners Lee
   • What happens when I view a web page
     • Your Computer
       • Your Isp
         • Internet
           • Website host/server
             • A web server is server software, or hardware dedicated to running said software.
           • A global computer network providing a variety of information and communication facilities, which has many interconnected networks.
         • (Internet Server Provider) - An Internet service provider is an organization that provides services for accessing the Internet.
   • HOW IT WORKS
     • Start
       • Enter URL into browser
         • Browser requests IP address of site from ISP
           • ISP requests IP Address from DNS server
             • DNS responds with details of the name server
               • ISP asks name server for site IP Address
                 • Name server responds with IP Address of the host
                   • ISP sends IP address to the browser
                     • Browser sends request to the server hosting the site
                       • End
   • Abbreviations and definitions
     • IP Address
       • An Internet Protocol address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
     • ISP
       • Internet Service Provider
       • URL
         • The Address of a worldwide page
     • DNS Server
       • The Domain Name System is a naming system for computers, services, or other resources connected to the Internet or a private network.

2. CSS

   • HTML defines the structure and content of your web page
     • CSS defines the style and layout of web pages
       • CSS can be used to change the style of a whole website, one web page or a single occurrence of an element.
         • h1 {colour: blue;}
         • e.g: <h1 style= "text-align:center">
   • Responsive Design
     • Websites are viewed on different size screens
     • Webpages must automatically adjust to fit
       • Set widths as percentages rather than pixels
     • 10%
       • 10 px

3. CODES

   • <br>
     • Breaks the text
   • <p>
     • Starts a new paragraph
     • </p>
       • Ends a paragraph
   • <h(number)>
     • Creates a new heading
   • <a href="linkname.html">Test!</a>
     • Creates a link to another page
   • <img src="img.jpg" alt="Image!" style="width:(number)px;height:(number)px">
     • Inserts an image
   • <ol> (new line) <li>This is..</li> (new line) <li>This is..</li> (new line) <li>This is..</li>
     • Lists