#gallery {
display: flex;
flex-wrap: wrap;
justify-content: space-evenly;
}

#gallery a {
margin: 2em 0;
}

#gallery img {
width: 24em;
height: 18em;
padding: 0.4em;
border: 0.3em solid #660000;
transition: width 0.5s, height 0.5s, padding 0.5s;
}

#gallery img:hover {
width: 24.8em;
height: 18.8em;
padding: 0;
}