html {
        height: 100%;
}
body {
    background-color: #E6E6E6;
    height: 100%;
    -webkit-transform-style: preserve-3d;
    -moz-transform-style: preserve-3d;
    transform-style: preserve-3d;
    margin: 0;
    }

img {
    margin: 0 auto;
    position: relative;
    top: 50%;
    -webkit-transform: translateY(-50%);
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
    width: 98%;
    max-width: 1700px;
    border: 0;
    outline: none;
    display: block;
}
.show {
    display: block;
}
.hide {
    display: none;
}

@media all and (orientation:portrait) {
    .show {
        display: none;
    }

    .hide {
        display: block;
    }
    img {
        max-height: 98%;
        width: 98%;
    }
}