.overflow-hidden{overflow:hidden}.text-center{text-align:center}body{margin:0;padding:0;background-color:#f5f5f5;color:#333}img{max-width:100%}header{background-color:#111;color:#fff;padding:15px;text-align:center}header h1{margin:0}section{padding:20px;max-width:1200px;margin:auto}.grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.grid img{width:100%;border-radius:8px}.button{background-color:#4caf50;color:#fff;padding:10px 20px;border:none;border-radius:5px;text-align:center;cursor:pointer;display:inline-block;text-decoration:none}.button:hover{background-color:#45a049}footer{background-color:#111;color:#fff;text-align:center;padding:15px}@media(max-width:768px){.grid{grid-template-columns:1fr}}