JSFiddle - React, Tailwind, and code Playground

HTML

<div>
<input type="text" id="q" />
<input type="button" id="b" value="Search" />
</div>

CSS

#q, #b { 
   margin: 0 
}
#q { 
   padding 5px; 
   font-size: 2em; 
    padding-left:50px;
   line-height: 30px 
}
#b { 
   /* image replacement */
   text-indent: -99999px; 
   width: 30px; 
   height: 30px; 
   display: block;
    position:absolute;
    top:4px;
    left:4px;
   background: gray url(button.png) 0 0 no-repeat;

   /* placing next to input using float or absolute positioning omitted ... */
}
div{
    position:relative;
}