JSFiddle - React, Tailwind, and code Playground

HTML

<div><input list="browsers"></div>

<datalist id="browsers">
  <option value="Internet Explorer">
  <option value="Firefox">
  <option value="Google Chrome">
  <option value="Opera">
  <option value="Safari">
</datalist>

CSS

div{
    position:relative;
    display:inline-block;
}

div:before{
    content:'';
    position:absolute;
    right:4px;
    top:3px;
    width:20px;height:20px;
    background:#fff;
}