Changing color of side boxes

Good morning. I wanted to know if there is a way for me to change the
.leftboxcontainer and .rightboxcontainer solid color to a gradient color? Thank you in advance.

Moneyca:

Good morning. I wanted to know if there is a way for me to change the
.leftboxcontainer and .rightboxcontainer solid color to a gradient color? Thank you in advance.
Without seeing your site to know how those solid colors are being generated, it's difficult to be specific. But in principle the answer is yes. You would create an image with your gradient, put it in your template's images folder, and attach it as a background-image in your stylesheet to the classes that you listed in your question e.g. .leftboxcontainer {background-image:url(../images/your_gradient.gif)}