.image-loader{

    position:relative;
    display:inline-block;
    overflow:hidden;

}

.image-loader img{

    opacity:0;
    transition:.5s;
    width:100%;

}

.image-loader img.loaded{

    opacity:1;

}

.spinner-image{

    position:absolute;
    left:50%;
    top:50%;
    transform:translate(-50%,-50%);
    z-index:99;

}