What is the role of strong and center tags in HTML, given that we already have style control with CSS?

The <strong> tag is used for logically emphasizing important text. It indicates to search engines and screen readers the significance of the content. Visually, by default, it makes the text bold, but this can be changed with CSS.

The <center> tag is deprecated and not recommended for use in HTML5. Its role was to center the content of a block element, but now CSS properties such as text-align: center, margin: 0 auto, display: flex, justify-content: center, and others are used for this purpose.

CSS is responsible for the visual presentation, while HTML handles the structure and semantics of the content. Using semantically correct tags in HTML improves the accessibility and SEO of a website, even if their visual display is fully controlled through CSS.