themes-wordpress/block-canvas/style.css

/*
Theme Name: Block Canvas
Theme URI: https://github.com/Automattic/themes/tree/trunk/block-canvas
Author: Automattic
Author URI: https://automattic.com/
Description: Block Canvas is a simple theme that supports full-site editing. It comes with a set of minimal templates and design settings that can be manipulated through Global Styles. Use it to build something beautiful.
Requires at least: 6.0
Tested up to: 6.0
Requires PHP: 5.7
Version: 0.0.23
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: block-canvas
Tags: one-column, custom-colors, custom-menu, custom-logo, editor-style, featured-images, full-site-editing, block-patterns, rtl-language-support, theme-options, threaded-comments, translation-ready, wide-blocks, auto-loading-homepage

Block Canvas WordPress Theme, (C) 2022 Automattic, Inc.
Block Canvas is distributed under the terms of the GNU GPL.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*/

/*
 * 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;
}