body{background-color:#fff;color:#000;font-family:Arial,sans-serif;margin:0;padding:0}.login-container{display:flex;justify-content:center;align-items:center;height:100vh}.login-box{background-color:#1877f2;color:#fff;padding:20px;border-radius:10px;max-width:400px;width:100%}tr>td{padding-bottom:10px}input{box-sizing:border-box}.background-iframe{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1}