How to stretch containers in the email sign-up section

[CreatorTim]

Hi, how can I stretch the containers so that they align with the end of the text? Starting at a screen width of 750px+, everything looks normal, so I just want to stretch them for widths up to 749px.

I want everything else to stay as it is—it works fine on mobile and PC—but when the screen size is around tablet dimensions, it looks off. 

Here’s my store: https://1049xn-ya.myshopify.com/
(Just scroll all the way down to the email sign-up section.)

Thanks,
Tim

[dws_pvt_ltd]

Hello @CreatorTim, Please follow these steps to add this CSS code:
1. Go to your Online Store
2. Click on "Themes"
3. Select "Edit code"
4. Open your CSS or Section file. If you have a custom CSS file, open that instead.
5. If you can't find your custom CSS file, open base.css" OR "theme.css".
6. Add or change to the existing code from the following code in the file.

#contact_form, #ContactFooter, #ContactFooter > .newsletter-form__field-wrapper, #contact_form > .newsletter-form__field-wrapper {
    /* max-width: 500px; */ /* remove or comment this CSS */
    max-width: 100%; /* add this CSS */
    width: 100%;
    display: flex;
}

Feel free to reach out if you have any questions or need assistance.
Best Regards,
DWS.

[CreatorTim]

hey, it's not working It only works up to a width of 549px, but that was already working before. I want it to work for widths up to 749px. How can I fix this.