body {
  background-color: #00008B;
  color: #f1f1f1;
}

.card, .form-control {
  background-color: #2a2a2a;
  color: white;
  border-color: #444;
}

input, select, textarea {
  background-color: #2a2a2a
  color: white;
}

<style>
.thumbnail-container {
  display: inline-block;
  margin: 10px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.thumbnail-container:hover {
  transform: scale(1.05);
  box-shadow: 0 0 12px rgba(0, 255, 150, 0.5);
}

.thumbnail-container img {
  width: 200px;              /* Fixed width */
  height: 150px;             /* Fixed height */
  object-fit: cover;         /* Crop to fill the box */
  border-radius: 8px;
  display: block;
}

.close-button {
  position: absolute;
  top: 10px;
  right: 20px;
  font-size: 3rem;         /* Larger */
  color: red;              /* Red color */
  font-weight: bold;
  z-index: 1056;
  cursor: pointer;
  text-shadow: 1px 1px 5px black;  /* Improves contrast */
}


</style>