JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <input type="text" />
    <img src="http://www.thatssotrue.com/images/ajax_loader.gif" />
</div>

CSS

div {
    border: 1px solid #ccc;
    padding: 0px;
    margin: 20px;
    overflow: hidden;
    width: 300px;
    position:relative;
}
input {
    border: none;
    height: 30px;
    width: 100%;
    padding: 3px;
    display: block;
}
img {
    height: 30px;
    padding: 3px;
    position: absolute;
    right: 0px;
    top: 0px;
}