Shared memory object mapping. What is the difference between the two: Difference: A memory-mapped file is a mapping from a file to a block of memory so that the application can access the file on the disk through the memor... Read Linux: In addition to file mapping, is there any other way to share memory?
The @namespace at-rule in CSS is used to define XML namespaces, which are used to qualify element and attribute names in XML documents. This allows you to use namespaced elements and attributes in your CSS styles, and ensures that your styles are applied correctly to the correct elements in your document.
/* Default namespace */
@namespace url(XML-namespace-URL);
@namespace "XML-namespace-URL";
/* Prefixed namespace */
@namespace prefix url(XML-namespace-URL);
@namespace prefix "XML-namespace-URL";
To use the @namespace at-rule, you specify the prefix and the URI for the namespace that you want to define. You can then use the prefix in your CSS selectors to apply styles to elements in that namespace. This allows you to use namespaced elements and attributes in your styles, and ensures that your styles are applied correctly to the correct elements in your document.
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The @page at-rule in CSS is used to modify different aspects of a printed page, such as its dimensions, orientation, and margins. This allows you to control the appearance of your content when it is printed, and ensure tha...
The @media at-rule in CSS allows you to apply styles based on the result of one or more media queries. This allows you to create styles that are tailored to different devices and viewport sizes, and to ensure that your con...