Semantic HTML
Semantic HTML is tags and elements, such as blockquote, paragraph, and headings. These elements are chunks of content that make up a page. Proper HTML structure aid screen-reader tools.
Semantic HTML is viewed in a browser and adapts to the device you are viewing it on. Semantic HTML is available offline on your mobile device, if you don't close your browser.
Use Cases
Semantic HTML might be useful to you if:
You want to adjust font size and background color.
You want to highlight content, take notes, and bookmark important pages.
You want to be able to copy, paste, and search text.
You want to use text-to-speech and adjust the speed of the speech.
You prefer to read.
You use a screen reader.