POS-Server/app/views/products/print_labels.pdf.erb

<style>
    .column {
        float: left;
    }

    .left {
        width: 60%;
        font-size: 12px;
        min-height:5px;
    }

    .right {
        width: 40%;
        font-size: 14px;
        font-weight: bold;
    }
</style>
<div class='pdf-body'>
    <% @products.each do |obj| %>
        <% (1..obj['print']).each do |i| %>
            <div class="text-center" style="padding-top:5px;margin-bottom:5px">
                <%= wicked_pdf_barcode_image("#{obj['product'].barcode}.png", options = { width: 150, height: 50 }) %>
            </div>

            <p style="margin-left:0px;margin-right:0px;margin-top:0px;margin-bottom:10px"><%= obj['product'].name %></p>

            <div class="row">
                <div class="column left">
                    <ul style="list-style: none; margin:0px; padding:0px">
                        <% obj['product'].attrs_array.each do |attribute| %>
                            <li><%= attribute %></li>
                        <% end %>
                    </ul>
                </div>
                <div class="column right">
                    <span style="margin:auto"><%= number_to_currency(obj['price'], precision: 2) %></span>
                </div>
            </div>
            <br>
            <br>
        <% end %>
    <% end %>
</div>