.mantenimiento {
    position: fixed;
    display: flex;
    left: 0;
    top: 0p;
    width: 100%;
    background-color: #ffc107;
    color: #000;
    padding: 10px;
    font-weight: bold;
    z-index: 9999;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
    height: 40px;
    font-size: small;
    align-items: center;
    justify-content: center;
}

.separador{

height: 60px;
    
}