table { width: 100%; border-spacing: 0px; border: 1px solid darkblue; }
table thead tr { background: linear-gradient(darkblue, black); color: white; border: 1px solid darkblue; }
table thead th, table tbody td { padding: 2px 4px; border: 1px solid darkblue; }
table tbody tr:hover { background-color: yellow; }

.tableSemBorda {border: 0px;}
.tableSemBorda th, .tableSemBorda td {border: 0px;}
.tableSemBorda td {border-top: 1px solid lightgray;}

.linkTD:hover { background-color: lightgreen; }