Border Styles

what are the options for border style in the ltw_style.css file?

table.cal {
background-color: green;
height: 500px;
border-style: none;
border-width: 3px;
font-family: sans-serif
}

what about the lines on the calendar arounf the date boxes

table.cal {
background-color: lightblue;
height: 600px;
border-style: none;
border-width: 3px;
font-family: sans-serif
}

td.cal {
background-color: white;
text-align: left;
vertical-align: top
}

no border style + 3px border + light blue background = default light blue borders