.main {
  padding: 10px;
  border-left: 2px solid teal;
  max-width: 1024px;
  margin: 20px auto;
}
.container {
  display: flex;
  align-items: center;
}
.section {
  flex: 1;
}
button:hover {
  cursor: pointer;
}
button {
  font-size: 16px;
  padding: 10px;
  width: 120px;
  background-color: teal;
  color: white;
  border: none;
  border-radius: 4px;
}
button.disabled {
  background-color: gray;
  opacity: 0.5;
  cursor: auto;
}
h1 {
  color: teal;
}
.loader {
  border: 3px solid lightgray;
  border-top: 3px solid teal;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  animation: spin 2s linear infinite;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}