Sorry for all the confusion that i have created.:(
Let me try to explain you clearly what my requirement is.
There is a simple form designed in div layout with span used as columns.
The structure of the form is pre-defined with two columns. So, when ever i want to place a data to span complete row then i am using 2nd column (Where i have not specified any width).
The suggestion which you gave is to use margin-left in %. If i want to display data in two columns, then i don't have any problem. Now, when i want to span a data which covers complete row then i can't go with this as this will create left margin.
So, i want a solution with following requirement.
1. If data is more in 2nd column then it should not come in 1st column(This was the problem mentioned in the 1st post)
2. I should be able to use 2nd column for placing a data which should span complete row without any left margin.
Please suggest something for this.