ll four sides of a specific table cell can be specified under the collapsing border model." />
        <style type="text/css">* { margin: 0; padding: 0 }
            table
            {
                border-collapse: collapse;
            }
            td
            {
                border: 1px solid black;
                height: 50px;
                width: 50px;
            }
            #cell
            {
                border: 10px solid blue;
            }
        </style>
    <