body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: url(images/backG.jpg );
  opacity:"2";
}
header, footer {
  background-color:rgb(255, 0, 255);
  color: rgb(255, 255, 255);
  padding: 10px;ß
}
nav a {
  margin: 0 10px;
  color: white;
  text-decoration: none;
}
main {
  padding: 20px;
}
.gallery {
  display: flex;
  gap: 20px;
}
.gallery .item {
  border: 1px solid #ccc;
  padding: 10px;

}