.ui-autocomplete-input {
  border: none; 
  border: 1px solid #DDD !important;
  z-index: 1511;
  position: relative;
}
.ui-autocomplete {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1510 !important;
  float: left;
  display: none;
  min-width: 160px;
  width: 160px;
  
}