New HTML5 Tags and Their Purpose
HTML5 introduced several new semantic elements to improve the structure, meaning, and accessibility of web pages. These tags help developers build cleaner, more organized, and standards-compliant code while improving SEO and accessibility.
<mark> – Highlights or marks text as relevant.
In short: HTML5 semantic elements provide more meaningful structure to web pages, improving accessibility, readability, and SEO while replacing excessive use of generic <div> tags.