Hey there @musicletter – glad you figured out where to put the CSS that Justin provided!
Please keep in mind that a child theme is the recommended way to make major changes to a theme, as Justin mentioned earlier. If you went ahead and modified PHP and CSS files in the theme directly, all your changes will be overwritten and lost every time the theme is updated, so please be mindful if that’s what you did, so you don’t get any unexpected surprises.
We would like it to be bigger, the full width of the screen, when one clicks “search”.
Since the Google search box is third-party code and not part of this theme, detailed customization help isn’t something we’d normally provide here in the Twenty Twenty forum. To help point you in the right direction beyond what Justin already provided as a courtesy, something like this might help stretch out the search box, but you’ll want to be sure to test that on different sizes of devices to make sure it scales well at different sizes.
.gsib_a {
width: 2000px;
}
Furthermore, if there was an easy way, we would ultimately also want to replace these https://www.musicletter.it/home/?s=
results with those of “google”
This doesn’t sound like something that would be done in the theme. You might look into using a redirection plugin like this one with a regular expression to dynamically swap out the portion of the URL that you want.