body {
  font-family: sans-serif;
  padding: 20px;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}
.item {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  object-fit: cover;
}
video.item {
  max-height: 220px;
}
button#verMais {
  display: block;
  margin: 30px auto;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
}