11 Things every frontend developer should learn, and I mean it

This is not another recycled list. These are things I have seen developers skip, ignore, or just never bother learning, and it shows in their work. If you are serious about frontend, actually read this. 1. Semantic HTML structure Most developers just throw divs everywhere and call it a day. That is wrong. Semantic HTML is not just for SEO, it is for accessibility, readability, and long-term maintainability. Use the right tag for the right job. Use  <header> ,  <main> ,  <footer> ,  <section> , and  <article>  instead of generic  <div>  soup. Use  <nav>  for navigation,  <aside>  for sidebars, and  <figure>  for images with captions. Screen readers and search engines both depend on this structure to understand your page. Bad: <div class="header"> <div class="nav">...</div> </div> Good: <header> <nav>...</nav> </header> 2. Know when to use a heading tag and when not to Heading tags have meaning. They tell search engines and screen readers what is important on your page. Misusing them bre