Solved: How to resize product page?

Here are the steps you can follow:

1, Navigate to Online Store > Themes > Edit Code.

2, Locate and open the base.css (or theme.css, custom.css) file.

3, Paste the code snippet provided below at the bottom of the file, then save your changes.

.product-page {
    /* You can adjust this value according to your preference */
    max-width: 1200px;
    margin: 0 auto;
}

Here is the result

We hope this assists in resolving the issue.

If you find our solution helpful, kindly consider Liking and Marking it as Accepted. Thank you!