No one upvotes a messy Pen. Top examples have well-organized HTML, CSS, and JavaScript sections.
/* The "Paper" Container */ .paper-container max-width: 800px; margin: 2rem auto; background: #fff; box-shadow: 0 4px 6px rgba(0,0,0,0.1); border-radius: 4px; overflow: hidden; /* Contains the player */ jw player codepen top
Reviewing the "top" pens shows that developers primarily use this combination for: No one upvotes a messy Pen
/* deep, atmospheric background particles (abstract) */ body::before content: ""; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-image: radial-gradient(2px 2px at 25% 40%, rgba(120, 180, 255, 0.2) 1px, transparent 1px), radial-gradient(1px 1px at 70% 85%, rgba(200, 160, 255, 0.2) 1px, transparent 1px); background-size: 48px 48px, 32px 32px; pointer-events: none; z-index: 0; margin: 2rem auto