@media (min-width:768px) /*In this CSS code,
we are targeting screens with a minimum width of 768px.
If the screen is more than or equal to 768px wide,
the body code will run.*/
{

    #footerdiv_library {
        height: 350px;
        margin: auto;
        width: auto;
        background-color: #00558A;
    }

    .center_library {
        display: block;
        margin-left: auto;
        margin-right: auto;
        width: 50%;
        text-align: center;
    }

    #divmarginadjust8_library {
        width: auto;
        margin: auto;
        margin-top: 50px;
    }

    #divmarginadjust9_library {
        width: auto;
        margin: auto;
        margin-top: 50px;
    }

    #divmarginadjust10_library {
        width: auto;
        margin: auto;
        margin-top: 50px;
    }

    #divmarginadjust11_library {
        width: auto;
        margin: auto;
        margin-top: 50px;
    }







    .responsive-four-column-grid_library {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr 1fr;
    }
}



@media (max-width: 768px) /*In this CSS code,
    we are targeting screens with a maximum width of 768px.
    If the screen is less than or equal to 768px wide,
    the body code will run.*/
{

    .responsive-four-column-grid_library {
        display: block;
    }

        /* columns */
        .responsive-four-column-grid_library > * {
            padding: 1rem;
        }





    #footerdiv_library {
        height: 100%;
        width: 100%;
        background-color: #00558A;
    }

    .center_library {
        display: block;
        margin-left: auto;
        margin-right: auto;
        width: 50%;
        text-align: center;
    }

    #divmarginadjust_library {
        width: 100%;
        margin: auto;
        margin-top: 10px;
    }

    #divmarginadjust_library {
        width: 100%;
        margin: auto;
        margin-top: 50px;
    }

    #divmarginadjust_library {
        width: 100%;
        margin: auto;
        margin-top: 50px;
    }

    #divmarginadjust_library {
        width: 100%;
        margin: auto;
        margin-top: 50px;
    }

    .image9margin_library {
        margin-top: 40px;
    }
}