ant-design-blazor/components/notification/Notification.razor

@namespace AntDesign
@inherits NotificationBase

@foreach (var configKv in _configDict)
{
    var placement = configKv.Key;
    var configs = configKv.Value;
    var className = GetClassName(placement);
    var style = GetStyle(placement);
    <div @key="placement" class="@className" style="@style">
        <span>
            @foreach (var itemConfig in configs)
            {
                <NotificationItem @key="itemConfig" Config="itemConfig" OnClose="RemoveItem" />
            }
        </span>
    </div>
}