.el-form-item.is-invalid .el-input__wrapper {
    border: 1px solid #dc3545;
}

.invalid-feedback {
    color: #dc3545;
    font-size: 0.875em;
    margin-top: 0.25rem;
}

.el-tabs__content .el-tab-pane {
    display: none;
}

.el-tabs__content .el-tab-pane:first-child {
    display: block;
}