HTML table with only vertical cell borders

How to draw an HTML table with only vertical cell borders?

Its very easy. Collapse the borders and apply either a left or right border to the table cells
Code:
table
{
border-collapse: collapse;
}

th
{
padding: 5px 10px;
text-align: right;
}

td
{
padding: 5px 10px;
text-align: center;
border-left: 1px solid #aaaaaa;
}