.fixed_headers  {  border-collapse: collapse;  width: 670px;  margin-left:0px;  font-size:11px; } .fixed_headers  tbody,.fixed_headers  thead {     display: block; }  .fixed_headers  tbody  {    overflow-y: auto;    overflow-x: hidden;    height: 312px; }  .fixed_headers th:nth-child(1),.fixed_headers td:nth-child(1) {    max-width: 100px;    min-width: 100px; } .fixed_headers th:nth-child(2),.fixed_headers td:nth-child(2) {    max-width: 180px;    min-width: 180px; } .fixed_headers th:nth-child(3),.fixed_headers td:nth-child(3) {    max-width: 180px;    min-width: 180px; } .fixed_headers th:nth-child(4),.fixed_headers td:nth-child(4) { 	text-align:center; 	width:200px; } .fixed_headers th  { color:#ddd;background-color:#333575;border:0px solid #ddd;text-align:center;padding-top:5px;padding-bottom:5px;} .fixed_headers td  { color:#333575;word-wrap: break-word;} .fixed_headers tbody tr:nth-child(even) {   background-color: #DDD; } .fixed_headers th:nth-child(4) { }