.post_body{max-width:900px;margin:0 auto}.post_body iframe,.post_body video{width:100% !important;aspect-ratio:16 / 9;max-height:300px;display:block;margin:10px 0}.post_body img{max-width:100%;height:auto}@media screen and (max-width:768px){.post_body{max-width:100%;margin:0}}.magnet-link{background:#4CAF50;color:#fff !important;padding:8px 14px;border-radius:4px;display:inline-block;text-decoration:none;font-weight:bold}.magnet-link:hover{background:#3e8e41}iframe{max-width:100%;height:auto}@media (max-width:768px){iframe{width:100% !important;height:auto !important}