.detailsPanel {
    position: absolute;
    height: 100%;
    transition:transform 0.3s ease-in-out;
    //right: 100%;
    background: #333;
    z-index: 1;
    box-sizing: border-box;
    overflow-y: auto;
    overflow-x: hidden;
}

.detailsPanel.hidden {
    transform:translate(-100%,0);
}