Edit in JSFiddle

$(document).ready(function () {
    $("#button").click(function () {
        var toAdd = $("input[name=checkListItem]").val();
        var toAddNum = $("input[name=quantity]").val();
        $(".list").append("<li class='item'>" + toAddNum + " " + toAdd + "</li>");
    });
    $(document).on("click", ".item", function () {
        $(this).remove();
    });
});
<body>
    	<h2>Grocery List</h2>

    <form name="checkListForm">
        <div class="quantity">Quantity</div>
        <input type="text" name="quantity" maxlength="8" size="8" />
        <div class="quantity">Product</div>
        <input type="text" name="checkListItem" />
    </form>
    <div id="button">Add!</div>
    <br/>
    <ul class="list"></ul>
</body>
h2 {
    font-family:arial;
}
form {
    display: inline-block;
}
#button {
    display: inline-block;
    height:20px;
    width:70px;
    background-color:#cc0000;
    font-family:arial;
    font-weight:bold;
    color:#ffffff;
    border-radius: 5px;
    text-align:center;
    margin-top:2px;
}
.quantity {
    display: inline-block;
    height:20px;
    width:70px;
    font-family:arial;
    font-weight:bold;
    color:#000000;
    text-align:center;
    margin-top:2px;
}
.list {
    font-family:garamond;
    color:#000000;
}