*{margin:0;padding:0;box-sizing:border-box;font-family:Arial,sans-serif}body{background-color:#f5f5f5;color:#333}.container{width:100%;max-width:1200px;margin:0 auto;padding:20px}.footer{background-color:#222;color:#fff;text-align:center;padding:15px;margin-top:20px;width:100%}