JSFiddle - React, Tailwind, and code Playground

HTML

<table class="tab_out">
    <tr>
        <td rowspan="0" class="col">
           <div class="tab_in">title1</div>
            <div class="tab_in" id="a">a</div>
        </td>
        <td>
           <div class="tab_in">title2</div>
            <div class="tab_in" id="b">b</div>
        </td>
        <td>
            <div class="tab_in">title3</div>
            <div class="tab_in" id="c">c</div>
             <div class="tab_in" id="d">title 4</div>
             <div class="tab_in" id="e">e</div>
        </td>
        <td>
            <div class="tab_in">title4</div>
            <div class="tab_in" id="f">f</div>
             <div class="tab_in" id="g">title 5</div>
             <div class="tab_in" id="h">h</div>
        </td>
    </tr>
    
</table>

CSS

.tab_out {
        width: 800px;
        margin-bottom: 20px;
        text-align:center;
    }
    .tab_out td {
        border:1px dotted red;
        padding: 4px 6px;
        margin-bottom: 0;
        vertical-align:middle;
    }
    .tab_in {
        display: block;
        border: 1px dotted green;
    }

#a,#b{
    height:100px;
    padding-top:20px;
}