Free Online Tools for PDF, Calculator and Image Conversion body margin:0; padding:0; background:#f4f7fa; font-family:Arial, sans-serif; color:#333; line-height:1.8; .container width:90%; max-width:1100px; margin:auto; background:#ffffff; padding:40px; h1,h2,h3 color:#0b3d5c; margin-top:30px; p font-size:16px; margin-bottom:20px;