JSFiddle - React, Tailwind, and code Playground

HTML

<table width="90%" align="center" class="clone_table">
    <tr>									
        <th>Select</th>
        <th>First Name</th>
        <th>Last Name</th>
        <th width="5%"></th>
    </tr>									
    <tr>									
        <td><input type="radio" id="firstname1" /></td>
        <td><input type="text" id="lastname1" /> </td>
        <td><input type="text" /> </td>
        <td><a href="#" class="add_row">+</a></td>
    </tr>
</table>

CSS

th{
    text-align:left;
    background: #77CFE4;
    padding:5px 4px;
}
td{
    background: #E0F9FF;
    padding:4px 8px;
}
input{
    background:transparent;
    border: solid 1px #A9A9A9
}
.add_row, .rem_row {
    display: inline-block;
    padding: 10px 4px;
    border: solid 1px #969696;
    width: 24px;
    text-align: center;
    font-size: 25px;
    line-height: 1px;
    font-weight: bold;
    color: #ffffff;
    text-decoration: none;
    text-decoration: none;
    background: #106377;
}

JavaScript

//Clone row
	$(".clone_table").delegate( '.add_row', 'click', function (e) {
		e.preventDefault();
		var thisRow = $( this ).closest( 'tr' )[0];
		$( thisRow ).clone().insertAfter( thisRow ).find( 'input:text' ).val( '' );
		$(this).html("-").addClass("rem_row").removeClass("add_row");
		
		$('.rem_row').click(function(){
			$(this).parent().parent().remove();
		});
	});