Font Size von Tag Cloud Widget ändern

functions.php

<?php
/**
 * Modifies tag cloud widget arguments to have all tags in the widget same font size.
 *
 * @param array $args Arguments for tag cloud widget.
 * @return array A new modified arguments.
 */
function themeslug_widget_tag_cloud_args( $args ) {
	$args['largest'] = 0.8125;
	$args['smallest'] = 0.8125;
	$args['unit'] = 'rem';
	return $args;
}
add_filter( 'widget_tag_cloud_args', 'themeslug_widget_tag_cloud_args' );