Editable Table Header( Header Row) MisAlign with the row(Content Row)

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Thank you In Advance.

I am facing Issue with Vaadin Table In IE8. The Chrome and Mozilla everything working fine for my apps.

Title :
Editable Table Header( Header Row) Misalign with the row(Content Row)
Description : I am heavily used Vaadin table in my apps. The Table with the inline editing. The Inline Editing as given below.

→ Click on Add Button table in Editable one row with first column row cell value is Combo Box and second one is textbox.

The problem a raised after the Editable mode before that everything is good. after setEditable mode true header is misalign with the row.

kindly find the screen shot for your reference.