JSFiddle - React, Tailwind, and code Playground

HTML

<div class="comment">
    <div class="left">
        <div class="cmnt-gr">
            <h5><a class="user" href="">just me</a></h5>
            <h6 class="time">now</h6>
        </div>
    </div>
    <div class="right">
        <h6 class="comment-b">try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try try</h6>
    </div>
</div>
<div class="comment">
    <div class="left">
        <div class="cmnt-gr">
             <h5><a class="user" href="">just me</a></h5>
             <h6 class="time">now</h6>
        </div>
    </div>
    <div class="right">
        <h6 class="comment-b">try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try trytry try try try try try try try try try</h6>
    </div>
</div>
<div class="comment">
    <div class="left">
        <div class="cmnt-gr">
            <h5><a class="user" href="">just me</a></h5>
            <h6 class="time">now</h6>
       ...

CSS

.left {
       float:left;
       width:40%;
       background-color: gray;
    }
    .right {
        float:right;
        width:60%;
        vertical-align: text-top;
        background-color: red;
    }
    .comment {
        font-family: "Roboto", sans-serif;
        position: relative;
        vertical-align: text-top;
        background-color: pink;
        margin-top: 12px;
    }
    
.comment:after {
    content:'';
    display:block;
    clear: both;
}
h5, h6 {
  margin: 0;
  padding: 0;
}