body {
  background-color: #ffffff;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

.github-form {
  margin-left: 5em;
  margin-top: 4em;
}

.container {
  background-color: white;
  border-radius: 10px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
  margin: 50px auto;
  max-width: 600px;
  padding: 30px;
  text-align: center;
}

label {
  display: block;
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 10px;
  text-align: left;
}

input[type="text"] {
  border: 2px solid #ccc;
  border-radius: 5px;
  box-sizing: border-box;
  font-size: 16px;
  padding: 10px;
  width: 80%;
}

button {
  background-color: #4CAF50;
  border: none;
  border-radius: 5px;
  color: white;
  cursor: pointer;
  font-size: 16px;
  margin-left: 10px;
  padding: 10px 20px;
  transition: background-color 0.3s ease-in-out;
}

button:hover {
  background-color: #3e8e41;
}

#cdn-url {
  margin-top: 20px;
  margin-bottom: 40px;
  width: 80%;
}

#error-message {
  margin-top: 20px;
}