Child Theme for Modularity Easy???

I am sure I am missing something very simple, but I am not experienced and have been investing HOURS in trying to make simple changes in my site. I want to make a child them but after trying to carefully follow the instructions on creating a child theme, I end up with a page that inherits all the Pieces of my site without the formatting. It all appears in the page in a straight line down the page.

Here is the style.css I have used in my child folder called “modularity-child”. It is the only file in the folder.

/*
Theme Name: Modularity Child
Description: A multimedia child theme framework for WordPress by me
Version: 1.01
Tags: photography, one-column, two-column, theme options, minimal, widgets, white, portfolio, video, framework
Author: Ron Clifford
Author URI: https://ronclifford.com/about/
Template: modularity
*/

@import url("../modularity/rtl.css");

I hope you can help
https://www.ronclifford.com