body{
    background-color: #79c26c;
}
.gallery{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;
}
.gallery img{
    /*max-width: 200px;*/
    max-height: 200px;
}

@media screen and (max-width: 1000px) {
  body {
    background-color: lightblue;
  }
}