Interface theme and child css

I have created an Interface-child theme and within it a style.css file.
The purpose of the file is to standardize the font color and set the paragraph font size to 22 px:. It is not working.
Site is ecftest.org.
/*
Theme Name: Interface Child
Theme URI: http://ecftest.org/interface-child/
Description: Interface Child Theme
Author: Ron Carr
Author URI: http://ecftest.org
Template: interface
Version: 1.0.0
Tags: light, dark, two-columns, right-sidebar, responsive-layout, accessibility-ready
Text Domain: interface-child
*/

@import url(“../interface/style.css”);

/* =Theme customization starts here
————————————————————– */
/* Headings */
h1,
h2,
h3,
h4,
h5,
h6 {
color: #38761d;
}
p {
font-size: 22px;
color: #38761d
}