1 Week 3
1.1 Topics Covered
- Introduction to HTML and XHTML
- Valid HTML. Why is valid code important and what needs to be validated ?
- Styling with CSS
- Introduction to CSS
We will use the following tools
Browser extensions (if installable):
- HTML Validator. You can get it directly from Source Forge
- Codeburner for Firefox (HTML and CSS reference)
- Screengrab (easy tool to create screen captures of web sites. As of March 2012, this extension is dead)
The tidy program (optional, if you need a local validator that also works with NoteTab light)
- Go to HTML Tidy for Windows
- Download the EXE version. You will get a *.zip file called tidy.zip
- Extract the single tidy.exe to some directory, e.g. c:\bin\
1.3 Teaching materials
- HTML and XHTML elements and attributes (lecture notes)
- HTML and XHTML validation and repair
- Online HTML reference manual (at sitepoint, but you are free to choose others ...)
- CSS tutorial
- Online CSS reference manual
- See HTML links
1.4 Classroom activities
(1) Some major HTML tags Online documentation about HTML:
- We will use HTML and XHTML elements and attributes (lecture notes)
- We also will demonstrate the Codeburner Firefox extensions and the related Sitepoint web site.
- See HTML links (Manuals and short references) for other HTML documentation if you wish...
(2) A introduction to W3C Quality Assurance Tool set. It includes several tools
- http://validator.w3.org/ (Markup Validation Service)
- You can enter a URL, upload file or directly copy/paste code
- Supported formats (Sept 2009): HTML, XHTML, SMIL, MathML
- http://validator.w3.org/checklink (W3C Links Checker)
- http://jigsaw.w3.org/css-validator/ (on line CSS validation service)
- URL validation: You can enter either an HTML/XHTML URL or just a CSS
- Alternatively you can upload a CSS file (and pick the CSS profile).
- Other tools, e.g. a Feed validator are available from the Quality page ...
(3) Using web browser development tools
- Use of HTML Validator (install it if you didn't do it on week2). Basically you just go View-Source and look at the errors.
(4) Using Tidy inside NoteTab light
- This may not work (since Tidy must be installed on your computer)
(5) Homework 1 feedback and Q/A Homework 2 (if needed)
- Overal: ok work ... some could have invested some more work, e.g. use all features (or at least remove unused pages).
- Pay attention to copyright (i.e. lock the web site or kill it if you reuse copyrighted materials)
(6) Start of Homework 3 / Objectives and requirements for a term project
- Discussion of the term project
(6) Using the tidy program (if time left)
- You can get various flavors from SourceForge. More precisely:
- Get the Windows binary version from http://www.paehl.com/open_source/?HTML_Tidy_for_Windows
- Unzip it somewhere on the harddisk (I stronly suggest the C: drive, we will discuss this with the Lab assistants, so wait)
- Then configure NoteTab light, i.e. hit CTRL-F7 and tell the editor where to find tidy.exe
- Alternatively (v.s. using a default repair configuration through NoteTab ), you also can install GuiTidy: http://www.paehl.de/tidy/ (scroll all the way down). It will give you more options. Advanced users will have to use the command line.
We will start learning CSS, in particular
- Associating a styles and stylesheets with HTML
- Inline Styles
- Embedded Style Sheets
- Linking External Style Sheets
- CSS Validation ( http://jigsaw.w3.org/css-validator/ )
- CSS Selectors
- Text styling (e.g. fonts, size, aligns)
- HTML div and span tags
- CSS “boxes” , positioning elements and text flow (if time only !)
1.5 Homework 3
Task: Create a little HTML page that spells out a proposition for the term project: creating a website with an online service (see homework 1)
- Think about objectives and requirements for your term project
- Create an HTML page (either in HTML 4.01 strict or XHTML strict) and write down a draft proposal
- Create an external CSS style sheet that is linked to the HTML page
- HTML must include at least 3 titles plus paragraphs and lists (of your choice)
- Define a global default CSS rule or a rule for the body
- Define an extra rule for titles, paragraphs and list elements
- You should make a serious attempt to define a project (i.e. explicitly define some objectives and requirements)
- I only will evaluate whether you comply with the constraints, e.g. technical and design quality of the CSS, validity of the HTML
- Details of the term project proposal will not be evaluated and it is not yet binding. However, I require that you you define certain key elements:
- Objectives: What is the purpose of the web site ?
- Audience: What is your main target audience ? Can others consult it/find it useful ?
- Functions: What kind of information / applications should the site provide
- Styling: Any ideas about its look and feel ?
- Other information: ???
- Upload both the HTML and the CSS file to the World classroom before start of week 3 Monday lesson.