.validation-summary-errors {
    border: 0px dotted #f66e84;
    background-color: #f66e84;
    border-radius: 8px;
    margin-bottom: 8px;
}

    .validation-summary-errors ul {
        list-style-type: none;
        padding: 10px;
        color: #fff !important;
    }

        .validation-summary-errors ul > li {
            color: #fff !important;
        }