Accordion Title Overlaps Icon

In 1.407 I found accordion titles overlapping the triangle icon.

I fixed this by changing query-ui-1.8.9-custom.css as follows:

/* fix for accordion titles overwriting icons /*
/* replace this: .jayq-smoothness .ui-accordion .ui-accordion-header a { display: block; font-size: 1em; padding: .5em .5em .5em .7em; }  with*/
.jayq-smoothness .ui-accordion .ui-accordion-header a { display: block; font-size: 1em; }

If someone could tell me how to do this in a child theme it would be much appreciated.

Also needed to apply fix to “Height of Accordion Panes”.

Can anyone recommend an alternative to Jshortcodes please?

https://www.ads-software.com/plugins/j-shortcodes/