remove text shadow on select

HTML

<div>Hello there </div>

<img src="http://placehold.it/200x200" /><span></span>

<div>Hello there </div>

CSS

img::selection {
    background: transparent;
}
img + span {
    display: none;
}

@-moz-document url-prefix() {
    img {
        display: none;
    }
    
    img + span {
        background: url(http://placehold.it/200x200) no-repeat;
        width: 200px;
        height: 200px;
        display: block;
    }
}