.default > .table_header {
  position:absolute;
  left: 0; top: 0; right: 0; height: 22px;
  border: 1px solid #333;
  background: #eee;
  font-family: Helvetica, Arial, sans-serif;
  font-size: 13px; line-height: 20px;
  vertical-align: middle;
  color: #000;
  -webkit-user-select: none;
  -moz-user-select: none;
  -khtml-user-select: none;
}
.default > .table_header > .table_header_column {
  top: 1px; height: 20px; position: absolute;
  cursor: pointer; border-right: 1px solid #ccc;
  font-weight: bold;
}
.default > .table_header > .table_header_column > .sort {
  position: absolute; top: 1px; right: 2px;
}
.default > .table_body {
  position: absolute; top: 24px; left: 0; right: 0; bottom: 0;
  overflow: auto; overflow-x: hidden;
}