Templates: Alternating background colors of PDF invoice items rows

If you want to have different background of invoice items rows in PDF/HTML invoices, you can use CSS to achieve that.

1. Edit your invoice template in Settings → Billing → Invoice Customization → Invoice template 

2. Click on HTML button to edit html source of your template

3. To <table> element holding your invoice items, add ID attribute:

   <table id="invoice-table-items">

4. At the bottom of your template, add <style> block with css rules providing alternating backgrounds:
    

   <style> #invoice-table-items tr:nth-child(odd) { background: #c0c0c0; } #invoice-table-items tr:nth-child(even) { background: #ffffff; } </style>