Note: When executing scripts in an HTML page, the page becomes unresponsive until the script is finished. A web worker is a JavaScript that runs in the background, independently of other scripts, without affecting the performance of the page. You can continue to do whatever you want: clicking, selecting things, etc., while the web worker runs in the background.

Note: Yes. A web worker script is dependent on other script. A web worker is a JavaScript that runs in the background, independently of other scripts, without affecting the performance of the page. You can continue to do whatever you want i.e clicking, selecting things, etc., while the web worker runs in the background.

Note: When a web worker object is created, it will continue to listen for messages until it is terminated. To terminate a web worker, and free browser or computer resources, use the terminate() method.

Note: The "keygen" tag specifies a key-pair generator field used for forms. The HTML "keygen" tag is used to process Web forms with certificate management systems. The element generates a secure key and submits the public key.

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Note: "wbr" means "Word Break Opportunity". The "wbr" tag specifies where in a text it would be ok to add a line-break.

Note: Dynamic HTML, or DHTML, is an umbrella term for a collection of technologies used together to create interactive and animated web sites by using a combination of a static markup language, a client-side scripting language for eg. JavaScript, a presentation definition language for eg. CSS, and the Document Object Model.

Note: DHTML stands for "Dynamic HyerText Markup Language". Dynamic HyerText Markup Language (DHTML) is a combination of Web development technologies used to create dynamically changing websites.

Note: The HTML "canvas" element is a container for canvas graphics. An HTML canvas is a rectangular area on an HTML page. Canvas has several methods for drawing paths, boxes, circles, text, and graphic images.