CSS is not working Blazor MudTable Inline edit

Hi,

i have added a mudtable with inline edit and delete function.Problem is when i am clicking the second row for editing un edited row and header jumping to left side.How can i fix these CSS? .I need to make un editable row and header freez while inline edit is activated. Below is my code    i am added CSS .How can i fix this CSS issue?

@inject ISnackbar Snackbar

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//css for table edit inline coming here
   
        @if (applyButtonPosition.DisplayApplyButtonAtStart() || (editButtonPosition.DisplayEditButtonAtStart() && editTrigger == TableEditTrigger.EditButton))
        {
              
        }
       
        
        
        
       
       
        @if (applyButtonPosition.DisplayApplyButtonAtEnd() || (editButtonPosition.DisplayEditButtonAtEnd() && editTrigger == TableEditTrigger.EditButton))
        {
         
            
        }

    

    
        
        Nr
        Name
        
    
    
       
        @context.Number
        @context.Name
   
        
        
    
    
       
        @context.Number
        
            
        
        
            
        
    
    
        
    


@code {
     private TableApplyButtonPosition applyButtonPosition = TableApplyButtonPosition.End;
    private TableEditButtonPosition editButtonPosition = TableEditButtonPosition.End;
    private TableEditTrigger editTrigger = TableEditTrigger.RowClick;
       private bool canCancelEdit = true;
    private MudTable table;
    private Element elementBeforeEdit;
    private IEnumerable elements = new List();

    protected override void OnInitialized()
    {
        elements = GetData();
    }

    private void OnCommitEditButtonClicked(MouseEventArgs e)
    {
        table.RowEditCommit?.Invoke(table.SelectedItem);
        table.OnCommitEditClick.InvokeAsync(e);
        table.SetSelectedItem(null);
    }

    private void OnCancelEditButtonClicked(MouseEventArgs e)
    {
        table.RowEditCancel?.Invoke(table.SelectedItem);
        table.OnCancelEditClick.InvokeAsync(e);
        table.SetSelectedItem(null);
    }

    private void OnSelectedItemChanged(object element)
    {
        table.SetEditingItem(element);
    }

    private void BackupItem(object element)
    {
        elementBeforeEdit = new()
        {
            Name = ((Element)element).Name,
            Age = ((Element)element).Age,
        };
    }

    private void ResetItemToOriginalValues(object element)
    {
        ((Element)element).Name = elementBeforeEdit.Name;
        ((Element)element).Age = elementBeforeEdit.Age;
    }

    private IEnumerable GetData()
    {
        return new List()
        {
            new() { Number = 1, Name = "Peter Parker", Age = 16 },
            new() { Number = 2, Name = "Bruce Wayne", Age = 31 },
            new() { Number = 3, Name = "Clark Kent", Age = 31 },
            new() { Number = 4, Name = "Barry Allen", Age = 29 },
            new() { Number = 5, Name = "Tony Stark", Age = 52 },
        };
    }
    
    class Element
    {
        public int Number { get; set; }
        public string Name { get; set; }
        public int Age { get; set; }
    }
}