Create an appropriate user interface for an online store that enables a user to buy items.
Designing a user interface for an online store involves several important features that need to be included to enable a user to easily and securely buy items. Here is a possible layout of the user interface:

1. Navigation bar: At the top of the page, there should be a horizontal navigation bar that includes links to the Home Page, Categories of Products, Shopping Cart, User Account (with login and logout options), and Contact Information.

2. Search bar: Right below the navigation bar could be a search bar where users can enter keywords to search for specific items.

3. Product display: The main section of the page should display a grid of products with their images, names, and prices. Each product could also have a button that allows users to add it to their shopping cart.

4. Filters and sorting options: On the left side of the page, there could be a panel that allows users to filter products by various criteria, such as price range, brand, color, size, etc. There could also be options to sort the products by price, customer rating, date added, etc.

5. Shopping cart: A shopping cart icon could be visible in the top right corner of the page, displaying the number of items in the cart. Clicking on the icon should take the user to a page that shows a summary of the items in the cart, along with their quantities, prices, and a total amount. On this page, the user should also have the option to remove items or update their quantities. Finally, there should be a "Proceed to checkout" button that takes the user to a secure page where they can enter their shipping and payment information.

6. Footer: The bottom of the page could have a footer that contains useful information and links, such as the store's terms and conditions, privacy policy, return policy, and social media accounts.
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### Instruction:
Create an appropriate user interface for an online store that enables a user to buy items.

### Response:
Designing a user interface for an online store involves several important features that need to be included to enable a user to easily and securely buy items. Here is a possible layout of the user interface:

1. Navigation bar: At the top of the page, there should be a horizontal navigation bar that includes links to the Home Page, Categories of Products, Shopping Cart, User Account (with login and logout options), and Contact Information.

2. Search bar: Right below the navigation bar could be a search bar where users can enter keywords to search for specific items.

3. Product display: The main section of the page should display a grid of products with their images, names, and prices. Each product could also have a button that allows users to add it to their shopping cart.

4. Filters and sorting options: On the left side of the page, there could be a panel that allows users to filter products by various criteria, such as price range, brand, color, size, etc. There could also be options to sort the products by price, customer rating, date added, etc.

5. Shopping cart: A shopping cart icon could be visible in the top right corner of the page, displaying the number of items in the cart. Clicking on the icon should take the user to a page that shows a summary of the items in the cart, along with their quantities, prices, and a total amount. On this page, the user should also have the option to remove items or update their quantities. Finally, there should be a "Proceed to checkout" button that takes the user to a secure page where they can enter their shipping and payment information.

6. Footer: The bottom of the page could have a footer that contains useful information and links, such as the store's terms and conditions, privacy policy, return policy, and social media accounts.