body { }
    h1 { color:#fff;}
        .jlr {font-size: 0;}

.jlr .jlr_item {
    font-size: 1rem;
    display: inline-block;
    box-sizing: border-box;     
    padding: 5px;
}

.jlr img.jlr_img {
    height: 200px;
    opacity: 0;

}

.jlr img.jlr_loaded {
     -webkit-transition: opacity 1s ease-in;
    -moz-transition: opacity 1s ease-in;
    -o-transition: opacity 1s ease-in;
    -ms-transition: opacity 1s ease-in;
    transition: opacity 1s ease-in;
    opacity: 1;
}

.gray_out {
    background-color: #eee;
}