table.dataTable thead input, table.dataTable thead select {
    width: 100%;
} 





table.dataTable thead input[type=text]
{
  background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAcAAAAHCAYAAADEUlfTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAIGNIUk0AAHolAACAgwAA+f8AAIDpAAB1MAAA6mAAADqYAAAXb5JfxUYAAABNSURBVHjaXI7BDcAwCAMvyQjMyQ6dAbZiKfqoUK34g2zJh1dENIC7M8pMAPYdzAVY3d0ajNz9aypS/b5R6o+ZPdqoKgCq6h80KH3xDgBqNR97p8oAGQAAAABJRU5ErkJggg==) no-repeat right -18px center;
  border: 1px solid #999;
  padding: 3px 18px 3px 4px; /* USE the same right padding in jQ! */
  border-radius: 3px;
}
table.dataTable thead input[type=text].x{
  background-position: right 5px center;
}
table.dataTable thead input[type=text].onX{
  cursor: pointer;
}