.image-magnific-opener{
    position: absolute;
    right: auto; left: auto;
    bottom: 20px; top: auto;
    z-index: 100;
    font-size: 25px;
}

.image-magnific-opener.pos-right-top{
    right: 15px; top: 15px;
}
.image-magnific-opener.pos-left-top{
    left: 15px; top: 15px;
}
.image-magnific-opener.pos-right-bottom{
    right: 15px; bottom: 15px;
}
.image-magnific-opener.pos-left-bottom{
    left: 15px; bottom: 15px;
}

@media(min-width: 1200px){
    .image-magnific-opener.pos-right-top{
        right: 60px; top: 60px;
    }
    .image-magnific-opener.pos-left-top{
        left: 60px; top: 60px;
    }
    .image-magnific-opener.pos-right-bottom{
        right: 60px; bottom: 60px;
    }
    .image-magnific-opener.pos-left-bottom{
        left: 60px; bottom: 60px;
    }
}