How to remove horizontal lines in a table (border between rows)

Question

my table has 5 rows and 5 columns
table border="1"
border-collapse:collapse

i would like to remain with only vertical lines (border between columns).

Answer 1

try css. html won't do it.
table {
border: none;
}
td{
border-right:
}

Answer 2

@Akib Reza
I'm using css but that does not work, i av already tried.
and note please; i want to remove borders between rows, to make a table looks as if it has only one tall row with many columns.