JSFiddle - React, Tailwind, and code Playground

HTML

<div id="problema">
    <div id="verificar" style="width: 500px; height: 100px;">
         <h1 style=" clear: both;position: relative; display: inline; ">Log<sub>4</sub> <sup>64</sup> = 
    </h1>

        <input type="text" id="valor_total" />
    </div>
</div>

CSS

input {
    position: relative;
    top: -5px;
}