Answer 1

Answer 2

Answer 3

Answer 4

Answer 5

您可能想要使用百分比：

＆＃13;

＆＃13;

table.dataTable thead .sorting_asc {
  background: url("http://cdn.datatables.net/1.10.0/images/sort_asc.png") no-repeat 30% 50%;
}
table.dataTable thead .sorting_desc {
  background: url("http://cdn.datatables.net/1.10.0/images/sort_desc.png") no-repeat 30% 50%;
}
table.dataTable thead .sorting {
  background: url("http://cdn.datatables.net/1.10.0/images/sort_both.png") no-repeat 30% 50%;
}

＆＃13;

＆＃13;

＆＃13;