.left.cortexfx {
    background: url(/login/css/assets/cortex.png) no-repeat 100%/cover;
    display: none
}

@media (-webkit-min-device-pixel-ratio: 2),(min-resolution: 192dpi) {
    .left.cortexfx {
        background-image: url(/login/css/assets/cortex.png)
    }
}

@media (min-width: 1200px) {
    .left.cortexfx {
        display: block;
        flex: 0 0 55%;
        max-width: 55%
    }
}