@media only screen and (max-width: 600px) {
    
    header
    {
        position: relative;
    }

    main
    {
        padding: 20px;
        top: 0px;
    }

    main .principal {
        margin-top: 160px;
    }

    main .principal .card
    {
        justify-content: center;
        flex-direction: column;
    }
    main .principal .card h3
    {
        margin-bottom: 5px;
    }


    header .container .logo img {
        display: flex;
        height: 40px!important;  
    }

    footer
    {
        padding: 0 20px!important;
        justify-content: center!important;
    }

    footer .content .logo-footer{
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
    }

    footer .content .logo-footer img {
        height: 30px!important;
    }

    footer .content .logo-footer img:last-child{
        align-self: flex-start;
        margin-top: 10px;
        height: 50px!important;
    }

    footer .logo-footer address a {
        font-size: 13px;
    }
  }