body {
  font-family: Arial, sans-serif;
  background-color: #f2f2f2;
}

.container {
  width: 400px;
  margin: 100px auto;
  background-color: #fff;
  padding: 20px;
  box-shadow: 0 0 10px #ccc;
  border-radius: 5px;
}

h1 {
  text-align: center;
  margin-bottom: 30px;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 10px;
  font-weight: bold;
  color: #333;
}

input[type="text"],
input[type="password"],
input[type="submit"] {
  width: 100%;
  padding: 10px;
  font-size: 16px;
  box-sizing: border-box;
  border: 1px solid #ccc;
  border-radius: 5px;
}

input[type="submit"] {
  background-color: RGB(18, 53, 36);
  color: #fff;
  cursor: pointer;
}

.captcha-group {
  display: flex;
  align-items: center;

}

#captcha-image {
  margin-right: 10px;
	width: 5rem;
}