h1,h2,h3,h4 color:#c0392b; img width:50%; display:block; margin:20px auto; border-radius:10px;video display:block; margin:20px auto; max-width:100%; border-radius:10px;table width:100%; border-collapse:collapse; margin:20px 0;th click here background:#c0392b; color:#fff; padding:10px; font-weight:bold;td padding:10px; border:1px get more info