I have a button on my OpenCart (2.3.0.2) website with a sticky cart button. The idea is that there is only one page to order from (Just a few sandwiches, no categories and product page needed) so I added a cart button that stays on the top right of the page:

```
#cart {
    position: fixed;
    top: 0;
    right: 0;
}

```

This works on the desktop site but on mobile I get the following when scrolling:[![Button on mobile](https://i.stack.imgur.com/A5t0S.jpg)](https://i.stack.imgur.com/A5t0S.jpg)
As you can see on the top right, the button scrolls up a bit. After this the button scrolls with the page.

Are there any fixes for this issue?