Search widget width

The wppa search widget is bigger than my sidebar.
In the theme (voyage) there’s a class .widget_search defined which set the max width to 80% like :

.widget_search .search-query {
        margin-top: 10px;
        max-width: 80%;
}

In the wppa-search-widget.php I see that the search form should get this .widget_search parameters, but apparently not?

For the default search widget it does work by changing the size of this class. So I think it’s wppa related?

wppa version is 5.0.14 (I see on your site that 5.0.15 seems to be comming)..

My site is : https://sjomar.eu

NB: is there also a way to make the form with rounded corners like the other search widget?

https://www.ads-software.com/extend/plugins/wp-photo-album-plus/