table {
  width: 100%;
  text-align: left;
  min-width: 610px;
}
tr {
  height: 30px;
  padding-top: 10px
}
tbody {
  height: 150px;
  overflow-y: auto;
  overflow-x: hidden;
}
th,td,tr,thead,tbody { display: block; }
td,th { float: left; }
td:nth-child(1),
th:nth-child(1) {
  width: 20%;
}
td:nth-child(2),
th:nth-child(2) {
  width: 20%;
  float: left;
}
td:nth-child(3),
th:nth-child(3) {
  width: 59%;
  float: left;
}
/* some colors */
thead {
  background-color: #333333;
  color: #fdfdfd;
}
table tbody tr:nth-child(even) {
  background-color: #dddddd;
}