img.ri
{
    position: absolute;
    max-width: 80%;
    top: 10%;
    left: 10%;
    /* border-radius: 3px;
    box-shadow: 0 3px 6px rgba(0,0,0,0.9); */
}
img.ri:empty
{
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}
@media screen and (orientation: portrait) {
    img.ri { max-width: 90%; }
}

@media screen and (orientation: landscape) {
    img.ri { max-height: 90%; }
}