.gritter-item-wrapper.ntf-err {
    background-color: #d40000 !important;
}

.gritter-item-wrapper.ntf-err .gritter-top,
.gritter-item-wrapper.ntf-err .gritter-item,
.gritter-item-wrapper.ntf-err .gritter-bottom {
    background: transparent !important;
}

.gritter-item-wrapper.ntf-err .gritter-item p {
    color: #fff !important;
}

.gritter-item-wrapper.ntf-err .gritter-close {
    color: #fff !important;
    border-left-color: rgba(0,0,0,.3) !important;
}

.gritter-item-wrapper.ntf-err .gritter-close::before,
.gritter-close::before {
    content: 'Fechar' !important;
    color: #fff !important;
}

.gritter-close {
    left: auto;
    right: 15px;
    background: transparent !important;
}