Bold Font

That is, the text in the tab header, not within the tab.

You can add your custom CSS rules in the WP customizer’s custom CSS section.

Could you tell me what code to use and where to put it?

Please provide a link to the page on your site which has the tabs

Unfortunately the website is in development and the host I’m using won’t let people see it until it’s “live” so I can’t share a link. All I want to do is make the text in the tabs BOLD and I have put the “font-weight: bold;” everywhere I can think of and it won’t make the text bold.

If what you have already tried is not working, styles in the theme might be overriding the rules you are adding.

This should work:

.responsive-tabs__heading,
.responsive-tabs__list__item {
	font-weight: bold!important;
}

I would not normally recommend adding CSS rules to customize how the tabs display, however in this case it should be safe for just making the titles bold. If further customization is required, using the methods suggested in the plugin’s readme is recommended.

Perfect! That worked great, thank you!