.container-header {
    position: relative;
    z-index: 10;
    margin-bottom: 0px;
    background-color: #cccccc;
    background-image: linear-gradient(135deg, #666666 0%, #999999 100%);
    box-shadow: 0 5px 5px rgba(0, 0, 0, 0.03) inset;
}