Plugin causes page column to be narrow

This is not an issue with Crosswordsearch. The difference between the two pages is that the second “before” one sets a class c-sw on the body element while the first “after” one does not.

Together with these style rules:

/* /themes/wp-pinup/style.css, line 154 */
#content {
    width: 70%;
    padding: 0;
    margin: 0;
}
/* /themes/wp-pinup/style.css, line 2355 */
.c-sw #content {
    width: 100%;
}

the small column can be explained.

Crosswordsearch does not tamper in any way with the body element. In fact, since the pages both do not contain the crosswordsearch shortcode, neither is the html produced altered in any way, nor are any resources (scripts or stylesheets) loaded.

You will have to find out how the theme identifies what it calls “Sidebar-Wide | Content”.

Thank you for your help, updating the CSS seems to have helped. However, it still seems odd that when the crossword search plugin was deactivated, when a page was edited the column was correct, but when the plugin was activated the saved page column was narrow.