Template:Dplmatrix with borders/styles.css
.dplmatrix-with-borders .dplmatrix {
margin: 1em 1em 1em 0;
background: #f9f9f9;
border: 1px #aaaaaa solid;
border-collapse: collapse;
}
.dplmatrix-with-borders .dplmatrix th {
background: #f2f2f2;
border: 1px #aaaaaa solid;
padding: 0.5em;
font-size: 80%;
}
.dplmatrix-with-borders .dplmatrix td {
text-align: center;
border: 1px #aaaaaa solid;
padding: 0.5em;
}