Docs Viewer + Mini Editor

/* Navigation */ nav { display: flex; justify-content: space-between; align-items: center; padding: 1em; } nav a { color: #fff; text-decoration: none; margin-left: 1em; } /* Ebooks and Audios Grid */ .grid { display: grid; grid-template-columns: repeat(3, 1fr); grid-gap: 1em; } .grid-item { background-color: #f5f5f5; padding: 1em; text-align: center; } .book-cover { max-width: 100%; } /* Modal */ .modal { display: none; position: fixed; z-index: 1; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: rgb(0,0,0); background-color: rgba(0,0,0,0.4); } .modal-content { background-color: #fefefe; margin: 15% auto; padding: 20px; width: 80%; } /* Media Queries */ @media only screen and (max-width: 600px) { .grid { grid-template-columns: repeat(1, 1fr); <body> <video src="your-video-file.mp4" autoplay loop muted playsinline width="100%" height="100%"></video> ... </body> body { margin: 0; padding: 0; position: relative; } video { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; }