@media only screen and (max-device-width: 480px){
    .form-line {
        padding-left : 0px !important;
        padding-right : 0px !important;
    }

    .form-matrix-column-headers {
        width : 20% !important;
        text-align : left !important;
    }

    th.form-matrix-column-headers {
        min-width : 10px !important;
    }

    th.form-matrix-row-headers {

        width : 1px!important;
    }

}