Add Borders on the Order Summary Table for Web Confirmation Emails via Customize Text

1. Navigate to Setup > Site Builder > Customize Text > click on Customize for the current Customize Text group currently assigned the web site. 

Note: To identify which Customize Group the site is using, navigate to Setup > Site Builder > Set Up Web Site > under Appearance tab > Text Group field 

2. Click the Email tab > look for Web store order received/approved/cancelled/fulfilled email body 


3. Add .listheadernosort to the CSS code to control the header column. Then change the border color for the rest. By default it is set to white, change it to black or light gray to make the borders visible.

example:

.listheadernosort {HEIGHT:100%; PADDING: 2 5 2 5; VERTICAL-ALIGN: top; COLOR: #ffffff; BACKGROUND-COLOR: 9933FF;}