JSFiddle - React, Tailwind, and code Playground

HTML

<table>
<tbody>
<tr>
    <td>Full Name:</td>
    <td><input type="text" class="text_field name" id="name"/></td>
    <td class="col-help name" width="200" >
           what is your name?
    </td>
<tr>
    <td>Password:</td><td><input type="text" class="text_field" id="password"/></td>
    <td class="col-help">Type a strong password...
    </td>
</tr>
</tr>
</tbody>
</table>

CSS

.focusField{  
    border:solid 2px #333;  
    background:lightyellow;   
}  
.idleField{  
     background:#fff;  
     border: solid 1px #DFDFDF;  
}  
input.text_field {
    -moz-border-radius: 5px 5px 5px 5px;
    border: 1px solid #DDDDDD;
    font-size: 14px;
    margin: 0;
    padding: 8px;
    width: 200px;
}
input.text_field.with_box {
    -moz-border-radius-bottomright: 0;
    -moz-border-radius-topright: 0;
}
.col-help {
    background:#f7f7f7;
    border:1px solid #ccc;
    font-size:13px;
    font-family:Tahoma, Geneva, sans-serif
}

JavaScript

$(function(){
    
    $('.col-help').hide();
    
    $('input[type="text"]').focus(function() {
        $(this).removeClass("idleField").addClass("focusField");
        $(this).closest('td').hasClass('col-help').show();
    });
});