HTML provides a few semantic elements to structure a web page including <header>, <nav>, <section>, and <footer>. The four main techniques to create multicolumn layouts are CSS frameworks, CSS float, CSS flexbox, and CSS grid. CSS frameworks offer quick layout solutions and flexbox and grid are more predictable and flexible layouts for different screen sizes.
2. Semantic Elements in HTML
Semantic elements in HTML give structure to content to improve clarity for browsers and developers. These elements offer context about the content's role on the page which makes the layout more accessible and easy to interpret. Using semantic elements allows web content to be more organized and easier to manage across different platforms.
3. Key Semantic Elements
Key semantic elements like <article>, <section>, <aside>, <header>, <footer>, and <nav> define specific parts of a web page and give structure to its layout. These elements help organize content like navigation links, headers, and independent articles. Using these semantic tags correctly makes a website easier to use and read on different devices and programs.