Hi there,
First of all go to Appearance > Customize > Additional CSS and paste below custom CSS code:
.entry-meta .cat-links span {
font-weight: 700;
margin-right: 7px;
float: left;
}
after that now go to theme main directory template-parts > content.php on line no: 39 there you will see below line of code:
<div class="cat-links"><?php the_category(' '); ?></div>
replace above code with below one:
<div class="cat-links"><?php the_category('<span>></span>'); ?></div>
Note: We recommended you to create a child theme for customizing the theme main code so that the customization code won’t lost whenever you update the theme to the new version.
Thank you!