1.1.4

• data-src and data-srcset attributes removed by default inview callback for lazy loading images to allow placeholder CSS based on the img[data-src] selector.

img[data-src] {
    background-image: url(placeholder.svg);
    background-size: cover;
    background-position: 50% 50%;
    background-repeat: no-repeat;
    background-color: #f9f9f9;
    cursor: context-menu;
}

img[data-src]:hover {
    background-color:#efefef;
}

Result: