JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">
   <a>this is a button</a>
   <input type="text"/>
</div>
<div id="wrapper">
   <a>Another button here</a>
   <input type="text"/>
</div>

CSS

#wrapper {
width:600px;
margin:10px auto;
background:blue;
}

#wrapper input {
 float:right;
width:70%;    
}