Zakra-trouble with mobile view

I am having trouble with the mobile view background image. White spaces show up on top and bottom of image and have added suggested css with no solution- what am I missing? Do I need to buy the pro version to solve this? Thanks in advance.

@media screen and (max-width: 400px) {
.elementor-20 .elementor-element.elementor-element-a105d6f:not(.elementor-motion-effects-element-type-background)
{
background-size:auto;
}

The page I need help with: [log in to see the link]