How can I adjust the full width of my website on all pages?

How do I change the full width of my website on all pages. The menu and logo seem to take up the full length with minimal side edges. I would like that for the rest of my pages and sections on the website. As shown in the first image, where the logo starts the picture starts, and so does everything that comes under. And where the cart icon ends, the picture ends. But when I go into full screen or preview, this changes. How can I get it to always be were the logo starts the picture starts, and so does everything that comes under.

Here is a good example.

hello @achaaraoui

Please provide website url and if your store is password protected then also provide password So I will check and provide a solution here.

1 Like

https://maisonloushi.myshopify.com

password: 1234

@Kinjaldavra here it is, thank you

hello @achaaraoui

please Go to Online Store->Theme->Edit code then go to assets/theme.css ->paste below code at the bottom of the file.

.page-width{

max-width: 100%;
margin: 0 auto;
}
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@Kinjaldavra thank you so so much!!! it worked perfectly!