CIS89A - 3. Links

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Mir - February 1995

From here to there - Links

Linking - the ability to embed hyperlinks in pages, is one of the most significant features of the web. The idea that a viewer could click on a word or a picture and immediately be taken to another page that provided additional relevant information was revolutionary.



Learning outcomes

  • add links to other web pages
  • add links to sections within the same web page
  • add links to email address



Keywords

  • absolute, relative, section, anchor, email address, downloadable file, style link, default color, tab order target window


Reading guide

  • What is a relative link?
  • What is required for the mailto link to initiate an email?


Assignments

Coding project required elements - ONE project with 2 html files, 1 css file

  • links - a, href, #, id (replaces name), link title text, top, mailto, subject, target, _blank, visited
  • styling - all in css file
  • links within the page, top, links to external web page (absolute), link to another page in same project (relative), opens in new window, opens in same window, link changes color after being visited, link changes color when mouse hovers over link, title displays when mouse hovers over link, mailto: special link with subject provided
  • Reminder: ONE NEW coding project for each module. For this coding project there must be 2 html files and a css file in the project. Normally, there is only ONE html file and a css file for the coding project.


  1. Review the Keywords and Reading guide questions at the top of this page. These will help you look for important ideas in the rest of assignments for this module. Review the Media section (below - scroll down) for links to resources for this module.

  2. Textbook - Read HTML and CSS Visual Quickstart Guide, Ninth Edition. Casabona.
    * Chapter 2 Creating a Website on Your Computer . Chapter 5 Links . Chapter 21 Getting Your Website Online - Making Your Site Live p.269-272 for information about transferring files to the web

  3. Links and web addresses - The "magic" of the WorldWide Web (aka WWW, w3, "the web", internet) is the ability to connect to other information resources anywhere through "hyperlinking" provided as HTML (HyperText Markup Language). The connection is made by supplying the web address (aka URL Universal Resource Locator). When the user wants to access this other resource, they "click" on the link. Their browser goes off and follows the directions provided in the link HTML code - take me to this other resource and display it. Learn more about this process. Find a resource that provides a good explanation of this process so you understand it. Post the link and a brief summary to the Links and Web Addresses discussion. Review 2-3 others.

  4. Working with Links - Coding project required elements - ONE project with 2 html files, 1 css file. Include links to several different web pages. Use all the link elements and tags to provide links to the sites, to your other projects and headings within this html file. Place all styling in the linked css file. Document your code with comments in html and css files.

    For the Relative link to an html file in the same Glitch directory
    * create another file in the same Glitch project - Files + in the left navigation menu. Replace cool-file.js with yourfilename.html and click Add this file. Your new file will be added to your project. This file is empty so you will have to add all the basic html code.
    * create the relative link to your new file that you have just created in the Glitch project directory
    * in your new file, include a link to your project .css file. This is required to include the shared external styling information. This is the main part of the Cascading in CSS. This applies to all pages that share styling throughout your projects and website

    Links don't "work" in the right preview panel in Edit view. Switch to "Preview in a new window" view or Share > Live site to check that your links are working.

  5. Check the Email HTML Code tool for help with the mailto link. This is just code - it won't actually work in your code project.
  6. Review the grading rubric in the Working with Links assignment. This is a checklist of the requirements for the coding project. Compare your work with the grading criteria. Do you understand the criteria and how your coding project will be evaluated? Any questions about the rubric and the grading process?
  7. Check your work. Use a HTML code validators such as HTML Validator to check the code you have written. Just copy your HTML code and paste it into the textbox in the online form.

  8. Submit the link to your coding project to the Working with Links assignment - the web address of the full page Preview of the main page or the Share Live site web address. Include any questions or comments you have about the rubric and the coding project evaluation process.
  9. AND Post a link to your project along with your comments and questions about this assignment to the Working with Links discussion.

  10. Review the work of 2 others - the page display and the source code. Post a note with links to those projects, and a brief description of your observations - anything that you learned from looking at these? Any ideas you have for using in your own work in the future? Post to the Working with Links discussion.

  11. Voyager public web page - Voyager is a file server. Any files in your public_html directory can be viewed as web pages from any web browser. This is similar to what you do with any web host. This is the most basic part of web development. This process is often facilitated with development tools so you don't see this level of detail. For this course, setting up an FTP application and transferring files to your Voyager public_html directory for web browser access is required. See Voyager FTP for additional information.

    Set up your Business/Computer Systems Account - If you haven't done this already, see Accessing Your Computer Account for more information. Follow the instructions to create a DeAnza Windows account. You will also be saving work to the DeAnza web server Voyager using the same username and password to login to Voyager.
    To access your Voyager account, you will need an FTP application (File Transfer Protocol) installed on your computer. Keep reading...

  12. FTP - For pages hosted on Voyager, transfer the HTML code text file with suffix .html and the associated .css file to your Voyager public_html directory. Voyager is an SFTP server. See Voyager FTP and textbook Chapter 21 Getting Your Website Online - Making Your Site Live for information about transferring files to the web
    There are several ways to transfer files to Voyager. You can use any ftp application or web page development tool that provides file transfer to move your page source text file from your computer to your Voyager public_html directory.

    Create a simple HTML file and CSS file and upload them to your public_html directory in your Voyager account. This must be a text file with the type .html. You can copy the HTML and CSS from Glitch to create a new text files on your own computer.
    * For the transfer, make sure the File protocol is "SFTP" otherwise you will not be able to connect to the server.
    * Check that your transfer was successful and you can access your page from your account on Voyager. Some functions work fine with either http: or https: in the web address. Other sites will work with one but not the other. Try each one if you are having problems.
    * Check that you have uploaded the .css file for your project and that it is "found" - you may need to change the relative link in your html file to access your css file on Voyager.

  13. Post a link to your web page in your Voyager account to Link to Voyager discussion.
    example : http://voyager.deanza.edu/~vtaylor/m18index.html
    Your ~username is a shortcut to your public_html directory in your Voyager user directory. Your ~username is always all lowercase. To access your web page files stored on Voyager - just http:// (not https://)
  14. Submit the Voyager page web address to the Voyager web page address assignment.

  15. Review your own work. Do you understand how these elements would be included in professional web sites? What questions came up during the coding project? How did you resolve them? Would you do something differently next time? Write a brief description of any problems your had with the coding project. Post your response to the Links - Review assignment.

  16. Assistive technology and Inclusive computing - It is important for web developers to understand both the limitations and the powerful tools provided by technology so people with disabilities can use the web. The result may be different but accessibility can be much greater if the web developer understands these design options. Here are some websites with good information.
    .. Inclusive design is design that considers the full range of human diversity with respect to ability, language, culture, gender, age and other forms of human difference.
    .. DeAnza Computer Accessibility Lab (CAL) Specialized equipment and training are available for loan through DSS and includes: Digital tape recorders, Portable closed circuit print enlargers, Assistive listening devices (DHHS), Daisy players, Smart Pens. Talking calculators
    .. Adaptive Technology - includes good overview of some of the adaptive equipment and software available
    .. Adaptive tools - to help with learning and attention issues. Some adaptive tools are low-tech and some are pretty fancy.

  17. Accessibility - Dyslexia simulation - Try out this constantly changing dyslexia simulation. Or try the Screen Reader simulation. Does the simulation give you a better understanding of the problems faced by computer users with these disabilities?
    Then describe your experience in 1-2 sentences in the Accessibility Simulations discussion.

  18. Group Project groups discussions - You have been assigned to a group that you will work with for the entire semester. Throughout the semester, there are discussion tasks to practice working in a group online. This will be your group for review and feedback in the final web project development activities as well. Group Projects Guide
    You will have a partial score until you have completed all the group discussion tasks in the course. Points are awarded for participation throughout the course so you will see your score increase after each task.

    Meet the others in the group. List 3 things about yourself. One food you really don’t like. Something you really enjoyed doing as a kid. What is your “dream job”. Post your introduction as a reply to your Group Projects groups discussion. Reply to 2 others.


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Media


Textbook - Read HTML and CSS Visual Quickstart Guide, Ninth Edition. Casabona.

  • Chapter 2 Creating a Website on Your Computer
  • Chapter 5 Links
  • Chapter 21 Getting Your Website Online - Making Your Site Live p.269-272 for information about transferring files to the web


HTML <a> Tag

The <a> tag defines a hyperlink, which is used to link from one page to another. The most important attribute of the <a> element is the href attribute, which indicates the link's destination.

title attribute

The A element is the tag you use to create a link. It is also referred to as the anchor tag. Use the title attribute in a link to improve accessibility

HTML title Attribute

The title attribute specifies extra information about an element. The information is most often shown as a tooltip text when the mouse moves over the element. The title attribute can be used on any HTML element

:hover

To style links appropriately, put the :hover rule after the :link and :visited rules

mailto link

add subject to the link


Examples

Working with Links
"Working with LinksThis website provides a...
Coffe Shop
"Coffe ShopHome Menu Learn more about C...
Theodore Willis
"Theodore WillisEditor illustrationWeb Dev...


LINKS

Better Labels for Website Links: the 4 Ss for Encouraging clicks (Video)
links should follow the 4 S, which is Specific, Sincere, Substantial, and Succint (concision). I would try to follow this advice when creating my website since, as of right now, I still do the Lear...
Difference Between URL and IP Address | Difference Between
In order to find what you want on the internet, you need to have a pointer of where to find it. URLs (Uniform Resource Locators) and IP addresses are just identifiers used for this purpose. The mai...
mailto: Links with Parameters for Recipient, Subject and Body
It is important to note that the subject must be URL-encoded, e.g. a space in "Hello World" becomes %20 so that the subject would be "Hello%20World"."
<p cla...
Styling Links in CSS - New2HTML
Controlling Link BehaviorThe behavior of a link refers to how that link is displayed on a web page, what happens when a user hovers over it as well as what happens at the point it is clicked and af...


ACCESSIBILITY

Designing for colorblindness - The Verge
Living with colorblindness feels like you’re constantly being pranked by the world in subtle, irritating ways.The other day, I was booking a flight on Kayak, trying to figure out which dates are...
WhoCanUse
What is whocanuse.com?It's a tool that brings attention and understanding to how color contrast can affect different people with visual impairments.The Web Content Accessibility Guidelines (WCA...
Our Impact - The AbleGamers Charity
Creating opportunities that enable play in order to combat social isolation, foster inclusive communities, and improve the quality of life for people with disabilities."
<p clas...