Hidden shopping cart on mobile

On mobiles my shopping cart is hidden behind the zopim window at the bottom right of the screen. How can I sort this out? Is there a code to move the zopim window?

www.senseequine.com

Thanks!

The community will need a working link to your website in order to see the issue, the template you are using and the settings in use.

Have added a link now, thanks!

@SenseEquine Add to Home > Design > Custom CSS

@media screen and (max-width:768px) {
.custom-cart {
   bottom: 10%;
}
}