body {
  font-family: sans-serif;
  padding: 10px;
  background-color: #f0f0f0;
  min-width: 250px; /* Ensure sidepanel has some minimum width */
}

h1 {
  color: #333;
  font-size: 1.2em; /* Slightly smaller h1 for a side panel */
  text-align: center;
  margin-bottom: 15px;
}

p {
  color: #555;
  font-size: 0.9em; /* Slightly smaller p for a side panel */
  margin-bottom: 5px;
}

#videoUrl {
  width: calc(100% - 22px); /* Adjust width considering padding/border */
  padding: 8px 10px;
  margin-bottom: 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box; /* Important for width calculation */
}

#downloadButton {
  padding: 10px 15px;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  width: 100%; /* Make button full width */
  font-size: 1em;
  margin-top: 5px; /* Added margin-top */
}

#downloadButton:hover {
  background-color: #0056b3;
}