Showing green border at form field

I created a login form.
But it shows green border after a field is losing focus.
I would like to remove the green border.
May I know how?
screencapture

I am using .NET 8.0 and Radzen.Blazor 5.2.9.
The them is "software"

here is my source code:

<RadzenTemplateForm Data=@user Submit="@(async (User args) => await OnValidateUser(args))">
    <RadzenStack Orientation="Orientation.Vertical" AlignItems="AlignItems.Center">
        <RadzenFormField Text="Login Name" Variant="Variant.Text" Style="width:300px;text-align:left">
            <Start>
                <RadzenIcon Icon="account_circle" />
            </Start>
            <ChildContent>
                <RadzenTextBox @bind-Value="user.LoginName" Name="LoginName" />
                <RadzenRequiredValidator Component="LoginName" Text="Login name is required" />
            </ChildContent>
        </RadzenFormField>
        <RadzenFormField Text="Password" Variant="Variant.Text" Style="width:300px;text-align:left">
            <Start>
                <RadzenIcon Icon="key" />
            </Start>
            <ChildContent>
                <RadzenPassword @bind-Value="user.Password" Name="Password"/>
                    <RadzenRequiredValidator Component="Password" Text="Password is required" />
            </ChildContent>
        </RadzenFormField>
        <RadzenButton ButtonType="ButtonType.Submit" Size="ButtonSize.Medium" Icon="login" Text="Log in" />
    </RadzenStack>
</RadzenTemplateForm>
<RadzenStack Orientation="Orientation.Vertical" AlignItems="AlignItems.Center">
    <RadzenText TextStyle="TextStyle.Subtitle1" Style="margin-top:20px;width:100%" class="horizontal-line">or Sign Up Using</RadzenText>
    <RadzenButton Image="img/google_g_icon.png" ButtonStyle="ButtonStyle.Base" Click="@(() => NavigationManager.NavigateTo("/Identity/Login", true))">
        <RadzenImage Path="img/google_g_icon.png" Style="width: 20px; height: 20px;" />
        <span class="rz-button-text">Google Sign In</span>
    </RadzenButton>
</RadzenStack>

Hi @t.leung,

You can check my reply in this thread: Green box around radiobuttonlist without validator - #2 by korchev

Hi, thanks for your quick response.
So I added the following CSS to the RadzenTextBox and RadzenPassword and it works!

.remove-border.valid.modified {
    outline: none;
}

Thanks again