title: how to change the border colour of ng-select component to red?
body: <p>The select component in my angular html template is displaying fine. However I want to display this component with a red border, currently it is displayed in grey color. I am not able to achieve this.</p>
  
  <p>I'm using Angular 5</p>
  
  <pre><code>&lt;ng-select class="custom" [searchable]="true" formControlName="contactList" [items]="contactLists" 
       bindLabel="name" 
       placeholder="{{ 'PLACEHOLDERS.CONTACT_LIST' | translate }}" [compareWith]="compareResource"&gt;
  &lt;/ng-select&gt;
  </code></pre>
  
  <p>the custom css is defined in file and it is as follows</p>
  
  <pre><code>.ng-select.custom {
      min-height: 0px;
      max-width: 350px;
  }
  .ng-select.dropdown {
      border: 1px solid black;
  } 
  </code></pre>