ICAWEB409A
Develop cascading style sheets

This unit describes the performance outcomes, skills and knowledge required to develop cascading style sheets (CSS) that are attached to a markup language document in order to externally define and control styles to enhance and achieve commonality between web documents.

Application

This unit applies to web designers and web developers who are involved in the layout and appearance of web pages.


Prerequisites

Not applicable.


Elements and Performance Criteria

1. Format, style and lay out the elements on a web page

1.1 Obtain user requirements

1.2 Style elements of a web page using a CSS

1.3 Apply CSS style sheets to multiple pages in a website

1.4 Position document elements using CSS

2. Test and validate web pages

2.1 Test website in various browsers

2.2 Validate the CSS against industry standards

2.3 Report result of tests to appropriate person

Required Skills

Required skills

analytical skills to identify appropriate CSS rules to be applied to obtain desired result

communication skills to liaise with end users

initiative and enterprise skills to recommend design features

literacy skills to:

follow documented instruction from a supplied guide

interpret workplace instructions and other technical documents

numeracy skills to work with:

document element dimensions

relative and absolute measurements

planning and organisational skills to:

create the CSS in allocated timeframe

plan the layout of the web page

problem-solving skills to:

create web pages that function in a variety of screen resolutions

resolve browser incompatibilities

research and literacy skills to keep up-to-date with latest industry guidelines

technical skills to:

produce valid accessible web pages

use CSS in the most efficient and effective way.

Required knowledge

overview knowledge of standard web and CSS design principles

detailed knowledge of:

hypertext transfer protocol (HTTP)

markup language (HTML, XHTML)

web standards.

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Evidence of the ability to:

develop a website styled and formatted using CSS to user requirements

lay out page elements using CSS

test web pages in a variety of browsers

validate the CSS against industry standards.

Context of and specific resources for assessment

Assessment must ensure access to:

a computer

aesthetic presentation brief

variety of browsers

HTML documents to have CSS applied to them

internet access to validate the CSS against the World Wide Web Consortium (W3C)

appropriate learning and assessment support when required.

Where applicable, physical resources should include equipment modified for people with special needs.

Method of assessment

A range of assessment methods should be used to assess practical skills and knowledge. The following examples are appropriate for this unit:

verbal or written questioning to assess candidate’s knowledge of CSS rules and how they affect the document styling and layout

evaluation of candidate’s created and modified web pages styled using CSS.

Guidance information for assessment

Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended, where appropriate.

Assessment processes and techniques must be culturally appropriate, and suitable to the communication skill level, language, literacy and numeracy capacity of the candidate and the work being performed.

Indigenous people and other people from a non-English speaking background may need additional support.

In cases where practical assessment is used it should be combined with targeted questioning to assess required knowledge.


Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Browsers may include:

Google Chrome

Firefox

Safari

Internet Explorer

Konqueror

Lynx

Mozilla

Netscape Navigator

Opera.

Industry standards may include:

W3C

Web 2.0.

Appropriate person may include:

client

manager

supervisor.


Sectors

Web


Employability Skills

This unit contains employability skills.


Licensing Information

No licensing, legislative, regulatory or certification requirements apply to this unit at the time of endorsement but users should confirm requirements with the relevant federal, state or territory authority.