.welcome-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background-color: #66FFCC;
  color: #333333;
  padding: 40px;
}

.categories-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.category-container {
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.video-container {
  padding: 20px;
}