Which technology does EPUB content authoring rely on?

EPUB content authoring primarily relies on HTML, CSS, JavaScript, and SVG. This combination of technologies allows authors to create richly formatted digital content that is not only visually appealing but also functional across different devices and platforms.

HTML (Hypertext Markup Language) serves as the backbone of EPUB content, structuring the text and multimedia. CSS (Cascading Style Sheets) is used for styling, enabling the author to apply design choices such as fonts, colors, and layouts, which enhance the reader’s experience. JavaScript allows for interactive elements, enabling features like quizzes or dynamic content updates. SVG (Scalable Vector Graphics) is used for vector-based graphics, allowing images to scale without losing quality, which is particularly useful in varying screen sizes found in e-readers and mobile devices.

This combination addresses the varied needs of digital publishing, ensuring that content is accessible and engaging. The other options, while they represent different programming and markup languages or frameworks, do not encompass the specific set of technologies that define the EPUB format, which is designed for eBooks and other e-publications.