HTTP status indicating access is not permitted.

CSS mechanism applying styles based on conditions.

Browser rule restricting cross-origin resource access.

Mapping requests or URLs to application handlers.

HTTP status indicating a requested resource was not found.

Web design adapting to device dimensions.

Small data value stored by a browser for a website.

Processing layer between a request and its final handler.

Requirement describing what software must do.

Sequence of actions a user takes to achieve a goal.