body{font-family:'Arial',sans-serif;background-color:#f4f4f4;margin:0;padding:0;display:flex;flex-direction:column;align-items:center}.article-container{background-color:#fff;padding:20px;border-radius:10px;box-shadow:0 4px 8px rgba(0,0,0,0.1);width:100%;max-width:800px;margin:20px}article{line-height:1.6}h1,h2,h3{color:#333}h1{font-size:2em;margin-bottom:20px}h2{font-size:1.5em;margin-top:20px}h3{font-size:1.2em;margin-top:15px}ul{list-style-type:disc;margin-left:20px}ul ul{list-style-type:circle}strong{color:#007bff}.article-footer{margin-top:20px;text-align:center}.article-footer a{color:#007bff;text-decoration:none;font-weight:bold}.article-footer a:hover{text-decoration:underline}