body {
      background-color: silver;
      font-family: "DejaVu Sans Condensed", helvetica, arial, sans-serif;
      }

td.label {
          font-weight: bold;
          padding: 4px;
          width: 12em;
          }

table.input {
             border: 1px solid black;
             border-collapse: collapse;
             }

tr.input:nth-child(even) {
                          background-color: silver;
                          }

tr.input:nth-child(odd) {
                         background-color: lightgray;
                         }

td.input {
          padding: 4px;
          }

input.button {
              margin-top: 4px;
              }