JSFiddle - React, Tailwind, and code Playground

HTML

<h2><a id="abc1" name="abc2">abc</a></h2>
<fieldset class="section">
    <legend>a</legend>
    <table class="sec">
        <p>a01</p>
        <p>a02</p>
    </table>
</fieldset>

<fieldset class="section">
    <legend>b</legend>
    <table class="sec">
        <p>b01</p>
    </table>
</fieldset>

CSS

h2 {
    display: inline-block;
    vertical-align: top;
}
fieldset {
    display: inline-block;
    width: 30%;
    vertical-align: top;
}