在表中的特定元素之间给出空格

i have two html table's inside a main table. I have to give the space between td of first table so that Heading one should be on top of Element1 and text box and Heading two should be on top of Element2 and select lists which are available in other table. Please suggest how can i achieve this, do i need to modify the html table structure. Please find the fiddle:i have two html table's inside a main table. I