body { font-family: Arial, sans-serif; background:#f5f5f5; }
.box { width:320px; margin:80px auto; padding:20px; background:#fff; border-radius:6px; box-shadow:0 2px 6px rgba(0,0,0,0.1); }
input[type=email], input[type=password] { width:100%; padding:8px; margin:6px 0; box-sizing:border-box; }
button { padding:8px 12px; }