h1 {
    font-family: 'Open Sans', sans-serif;
    margin-left: 35px;
}

#gallery ul {
    list-style-type: none;
    padding-left: 60px;
    width: 100%;
}

#gallery ul li {
    display: inline-block;
    position: relative;
    overflow: hidden;
}

#gallery ul li .mosaicItem {
    width: 400px;
    height: 400px;
}

#gallery ul li .mosaicItem > a .text {
    position: absolute;
    bottom: -50px;
    left: 0;
    width: 100%;
    height: 50px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    font-family: 'Open Sans', sans-serif;
    text-align: center;
    font-weight: 600;
    line-height: 50px;
    transition: all 0.5s ease-in-out;
    opacity: 0;
}

#gallery ul li .mosaicItem > a:hover .text {
    bottom: 0;
    opacity: 1;
}

#gallery ul li .popin {
    display: flex;
    text-align: center;
    position: fixed;
    top: -100%;
    transition: all ease 0.5s;
    opacity: 0;
    width: 100%;
    height: 100%;
    left: 0;
    justify-content: center;
    align-items: center;
    z-index: 999;
}

#gallery ul li .popin:target {
    top: 0;
    opacity: 1;
}

#gallery ul li .popin:target .imgBox {
    position: relative;
    z-index: 998;
}

#gallery ul li .popin:target .imgBox:before {
    content: '✖';
    position: absolute;
    right: 10px;
    top: 10px;
    color: white;
    z-index: 999;
}

#gallery ul li .popin:target .imgBox img {
    border: 3px solid white;
}

#gallery ul li .popin .overlay {
    position: absolute;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.7);
    width: 100%;
    height: 100%;
    z-index: 899;
}