.gallerycontainer{
    display:flex;
    justify-content:center;
    align-items:center;
}
.gallery {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    padding: 20px;
}

.gallery-item {
    box-sizing: border-box;
    margin: 10px;
    width:34%;
    min-width:34%;
    flex: 0 1 calc(50% - 20px); 
    max-width: 350px; 
    text-decoration:none;
}

.gallery-img {
    width: 100%;
    height: auto; 
    border-radius: 10%; 
}
a {
    text-decoration:none;
}
.gallery-caption {
    background-color: white;
    color: black;
    text-align: center;
    padding: 10px 15px;
    border-radius: 4%;
    opacity: 0.8;
    width: 33%;
    min-width:6rem;
    margin: 15px auto; 
    position: relative;
    bottom: 0; 
    text-decoration:none;
}

    .gallery-caption:hover {
        opacity: 0.9;
    }

.gallery-img:hover ~ .gallery-caption {
    opacity: 1;
}

@media (max-width: 350px) {
    .gallery-item {
        flex: 0 1 100%; 
    }
}