JSFiddle - React, Tailwind, and code Playground

HTML

<div class="center formcontainer" appMcard>
   <form >
      <div formArrayName="GroupId_Name" >
         <input  type="text" pInputText />
         <button pButton type="button" class="delete-btn " icon="fa-minus" >
         </button>
      </div>
      <div formArrayName="GroupId_Name" >
         <input  type="text" pInputText />
         <button pButton type="button" class="delete-btn " icon="fa-minus" >
         </button>
      </div>
      <div formArrayName="GroupId_Name" >
         <input  type="text" pInputText />
         <button pButton type="button" class="delete-btn " icon="fa-minus" >
         </button>
      </div>
      <button pButton type="button" (click)="addNewGroup()" icon="fa-plus" class="add-btn pull-right"></button>
   </form>
</div>

CSS

.formcontainer{
  display:inline-block;

}

.pull-right{
  float:right
}