JSFiddle - React, Tailwind, and code Playground

HTML

<article id="post-843">
    <div class="entry-content">
        <div class="stream-wrap">
            <div class="stream-left">NAME 1</div>
            <div class="stream-right">
                <div class="stream-content">Original Content</div>
                <div class="stream-footer"><a class="this-reply" href="#">REPLY</a>

                </div>
            </div>
            <!-- stream-right -->
            <div style="clear:both"></div>
            <div class="single-f3ed-reply">
                <div class="stream-reply-box">
                    <div class="stream-left">YOUR NAME</div>
                    <div class="stream-right">
                        <div id="respond-843">
                            <textarea rows="4" cols="40" placeholder="Type your reply here"></textarea>
                        </div>
                    </div>
                    <!-- stream right -->
                </div>
                <!-- stream reply box -->
                <div style="clear:both;"></div>
            </div>
            <!--single-f3ed-reply-->
            <div class="f3ed-reply">
                <div id="comments-843">
                    <li class="comment byuser" id="comment-208">
                        <div id="div-comment-208" class="comment-body">
                            <div class="f3ed-reply-wrap">
                                <div class="stream-left">NAME 2</div>
                                <div class="stream-right">This is a reply to the original post!</div>
                                <!--stream-right-->
                            </div>
                            <!--stream-left-->
                            <div style="clear:both"></div>
                            <!--f3ed-reply-wrap-->
                        </div>
                        <!--div-comment-208-->
                    </li>
                    <!-- #comment-## -->
                </div>
                <!--comments-843-->
            </div>
           ...

CSS

.stream-wrap {
    width:500px;
}
.stream-left {
    float:left;
    width:100px;
}
.stream-right {
    float:left;
    width:300px;
}
.single-f3ed-reply {
    margin-top:10px;
    background:#ccc
}
.f3ed-reply {
    margin-top:10px;
    background:yellow
}