.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.75)
}

.modal-content {
  position: absolute;
  top: 100px;
  bottom: 100px;
  left: 100px;
  right: 100px;
  border-radius: 0px;
  background: #fff;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  outline: none;
  padding: 20px;
}

.patron-placeholder {
  display: none
}
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.75)
}

.modal-content {
  position: absolute;
  top: 100px;
  bottom: 100px;
  left: 100px;
  right: 100px;
  border-radius: 0px;
  background: #fff;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  outline: none;
  padding: 20px;
}

.patron-placeholder {
  display: none !important
}
Add !important to placeholder class
patron-client: Add !important to placeholder class
