Your WEB POS default settings is to show the cart on the right side of your screen (see image below).
However, you can turn this setting off and hide the cart.
Note: if you're using the WEB POS on small screen (i.e., mobile phone, or tablet) it's best to hide the cart view so you can see more of your products on the screen
To hide your cart, please follow these steps:
Open the left-side menu by clicking on the three stripe lines on the top left corner
Click on Settings and select "CARTS" tab
Disable the "Always show cart at the right side of the screen"
Your sale screen will appear like the image below
To see and edit the items on your cart, click on the shopping cart icon on the top right corner.
Your cart will appear as an pop up window. Click on the shopping cart icon again to hide the cart view.