JSFiddle - React, Tailwind, and code Playground

HTML

<script src="/tmp/h600.png"></script>
<div class="floatLeft">
    <!-- Time stamp and fps below. -->
    <div class="floatLeft controls-menu round-corners clearBoth"> <span id='primaryLatestImageTimestamp' style='padding: 1em; width=10em'>
            13:48:33.801
        </span>
 <span id='primaryImageFPS' style='padding: 1em; width=7em;'>0 fps</span>
 <span id="msgLabel" style="width=7em"></span>

    </div>
    <!-- Main menu -->
    <div class="controls-menu round-corners clearBoth">
        <div id='focusControls' class="floatLeft" style='padding: 4px; display: inline-block;'>
            <button id="setAutoFocus">Auto Focus</button>
            <link rel="stylesheet" type="text/css" href="/static/sse/sse.css"></link>
            <form class='zoomRange_textbox pushTargetzoomRange' actions='/setParams' method='Post' title='Number of steps to sweep.'>
                <label style="font-weight: bold" for='zoomRange'>Zoom Range:</label>
                <input type='text' name='zoomRange' id='zoomRange_txt' size='6' value='20' />
            </form>
            <script>
                setupTextBox('zoomRange')
            </script>
        </div>
        <br/>
        <div id='lineRateSearch' class="clearBoth" style='padding: 4px; display: inline-block;float:left;'>
            <button id="setLineRate">Auto Sync</button>
            <button id="setLEDPower">Auto LED</button>
            <br/>
            <button id="setLaserPower">Auto Laser</button>
            <button id="graph">Analyze</button>
        </div>
        <!-- 1) data - first render info. 2) Display name 3) python defined setting name 4) tool tip -->
        <div class="clearBoth">
            <link rel="stylesheet" type="text/css" href="/static/sse/sse.css"></link>
            <form class='gain_textbox pushTargetgain' actions='/setParams' method='Post' title='Higher the value the brighter the picture will be.'>
                <label style="font-weight: bold" for='gain'>Gain</label>
             ...

CSS

.clearBoth {
     clear: both;
 }
 .floatLeft {
     float: left;
 }
 .round-corners {
     border-bottom-right-radius: 8px;
     border-bottom-left-radius: 8px;
     border-top-left-radius: 8px;
     border-top-right-radius: 8px;
 }

.controls-menu {
    background: url(/tmp/h600.png) repeat-x;
    border:2px solid;
    padding: 8px;
}