Creation could include
- using wireframes and mockups
- using a content management system (e.g., WordPress) or a web programming language (e.g., PHP, JavaScript)
- using style sheets to format content layout (e.g., text, images, forms, hyperlinks, tables)
- ensuring accessibility and 508 compliance
- validating code against DOCTYPE declaration (e.g., http://validator.w3.org)
- testing the website with multiple browsers and devices.