Chapter 1 Free Part - 3rd Secondary
Featured lesson video for Transition Elements.
Interactive Chemistry Games
<div style="position:relative;width:100%;padding-top:56.25%;background:#000 url('https://img.youtube.com/vi/2dsUGCHP5Ig/hqdefault.jpg') center/cover no-repeat;"> <div style="position:absolute;inset:0;display:flex;align-items:center;justify-content:center;"> <svg width="96" height="96" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg" style="filter:drop-shadow(0 6px 18px rgba(0,0,0,0.6));"> <circle cx="12" cy="12" r="11" fill="rgba(255,255,255,0.12)" stroke="rgba(255,255,255,0.18)"/> <path d="M10 8L16 12L10 16V8Z" fill="#ffffff"/> </svg> </div> <div style="position:absolute;left:12px;right:12px;bottom:12px;padding:8px 12px;background:linear-gradient(90deg,rgba(2,6,23,0.64),rgba(2,6,23,0.48));border-radius:10px;color:#e2e8f0;font-weight:800;"> Interactive Chemistry Games </div> </div> </a> </section> <a class="btn btn-secondary" href="3sec-ch1-html.html">Open Chapter 1 HTML</a> <a class="btn btn-secondary" href="lessons.html">Back to Lessons</a> </div> </main> </body> </html>