* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
}

.container {
  max-width: 800px;
  margin: 50px auto;
  padding: 20px;
  background-color: #f9f9f9;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

h1, h2 {
  color: #333;
  margin-bottom: 10px;
}

.email-address {
  padding: 10px;
  background-color: #e0f7fa;
  border-left: 5px solid #00acc1;
  margin-bottom: 20px;
  font-weight: bold;
  word-break: break-all;
}

.email-inbox {
  list-style: none;
  margin-bottom: 20px;
}

.email-inbox li {
  padding: 12px;
  margin-bottom: 8px;
  background-color: #ffffff;
  border: 1px solid #ddd;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.email-inbox li:hover {
  background-color: #f1f1f1;
}

.email-content {
  padding: 15px;
  background-color: #fff3e0;
  border-left: 5px solid #ffb300;
  border-radius: 5px;
  min-height: 100px;
  overflow-y: auto;
}