Hugo Merle

difficult for my WP level …..

I’ve tried changing parts of my theme CSS, in Appearance–>editor–>style.css

but nothing has happened….

I changed several elements in the style.css but have not found the right one.

I do not know whether changes should be made in the style.css or should I look for another page.

The theme is MesoColumn (https://montana.cdupv.com/)

style.css begins like this:
/*
Theme Name: MesoColumn
Theme URI: https://www.dezzain.com/wordpress-themes/mesocolumn/
Description: Mesocolumn is a Responsive HTML5 and CSS3 WordPress Theme that support BuddyPress, BBPress, WooCommerce and Jigoshop and comes with Unlimited Color Choice on Menu for category and pages, Background, Layout, Footer, Sidebar and Design packed 600+ Google Webfonts Selection.
Version: 1.6.3
Author: Richie KS
Author URI: https://www.dezzain.com
License: GNU General Public License
License URI: https://www.opensource.org/licenses/gpl-license.php
Tags: buddypress,white,two-columns,three-columns,right-sidebar,responsive-layout,flexible-header,editor-style,custom-colors,custom-menu,custom-header,custom-background,featured-images,full-width-template,theme-options,threaded-comments,microformats,rtl-language-support,translation-ready

The CSS, XHTML and design is released under GNU General Public License:
https://www.opensource.org/licenses/gpl-license.php

see changelog.txt for version update info
*/

/*/////////////////////////////////////////////////////////////////////////////
// RESET CSS
////////////////////////////////////////////////////////////////////////////*/
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,

——————————————————————–
thank you very much anyway