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BSEH SS Computer Science study materials
BSEH SS Computer Science study resources

BSEH SS Computer Science: Web Technologies and HTML

BSEH SS Computer Science · Work through your exam, one topic at a time.

All guide sections

Web Technologies and HTML

What this domain tests

Web Technologies and HTML tests client-server basics, URL structure, HTML document structure, common tags, forms, tables, links and basic CSS. Expect code correction and output.

Core rules

  • A web page is requested by a browser (client) from a web server using HTTP/HTTPS. Static pages are served as stored; dynamic pages are generated by server-side code.
  • HTML structure: <!DOCTYPE html>, <html>, <head> (metadata, title), <body> (visible content).
  • Tags: headings <h1>–<h6>, paragraph <p>, line break <br>, list <ul>/<ol>/<li>, link <a href='...'>, image <img src='...' alt='...'>, table <table>/<tr>/<th>/<td>.
  • Forms: <form action='...' method='get|post'> with <input>, <select>, <textarea>, <button>. name is the key sent to the server.
  • CSS can be inline, internal (<style>) or external (.css); selectors target elements, classes (.x) and IDs (#x).

Worked example

<a href='page2.html'><img src='logo.png' alt='Site logo'></a>

This makes the image a link to page2.html. The href is the destination; src is the image file; alt is alternative text shown if the image fails and read by screen readers. Reasoning: the anchor wraps the image, so clicking the image follows the link.

Traps

<br> is a line break, not a paragraph. alt is not a tooltip replacement for title. GET puts data in the URL; POST puts it in the request body. IDs must be unique; classes may repeat. Unclosed tags can change nesting.