themes-wordpress/programme/style.css

/*
Theme Name: Programme
Theme URI: https://github.com/wordpress/programme/
Author: the WordPress team
Author URI: https://wordpress.org/themes/
Description: Programme is a blog theme that reverences the legendary designer Massimo Vignelli and his playbills for the Piccolo Teatro in Milan. This design is suitable for programs, calendars, and announcements.
Requires at least: 5.8
Tested up to: 6.2
Requires PHP: 5.7
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Template: 
Text Domain: programme
Tags: blog, entertainment, one-column, wide-blocks, block-patterns, block-styles, custom-colors, custom-logo, custom-menu, editor-style, featured-images, flexible-header, full-site-editing, rtl-language-support, style-variations, template-editing, theme-options, threaded-comments, translation-ready, blog, programs, calendars, agenda, shows, concert, announcements, vignelli, massimo-vignelli, design-hero
*//*
 * Control the hover stylings of outline block style.
 * Unnecessary once block styles are configurable via theme.json
 * https://github.com/WordPress/gutenberg/issues/42794
 */
.wp-block-button.is-style-outline>.wp-block-button__link:not(.has-background):hover {
	background-color: var(--wp--preset--color--secondary);
	color: var(--wp--preset--color--background);
	border-color: var(--wp--preset--color--secondary);
}

/**
 * Currently table styles are only available with 'wp-block-styles' 
 * theme support (block css) thus the following needs to be included
 * since 'wp-block-styles' aren't used for this theme.
 * https://github.com/WordPress/gutenberg/issues/45065
 */
.wp-block-table thead {
	border-bottom: 3px solid;
}
.wp-block-table tfoot {
	border-top: 3px solid;
}
.wp-block-table td,
.wp-block-table th {
	padding: var(--wp--preset--spacing--30);
	border: 1px solid;
	word-break: normal;
}
.wp-block-table figcaption {
	font-size: var(--wp--preset--font-size--small);
	text-align: center;
}

/*
 * Link styles
 * https://github.com/WordPress/gutenberg/issues/42319
 */
a {
	text-decoration-thickness: .0625em !important;
	text-underline-offset: .15em;
}