Child theme style.css not working

I have been working with the Maskitto Light child theme on my local machine, running MAMP, php 7.0.15, WordPress 4.7.5

I successfully switched out the parent theme for the child theme. I am relying on the included functions.php to properly enqueue the stylesheet. I created a new page and a test div with an ID that I could target with the child theme’s CSS. But making changes to the child CSS doesn’t seem to have an affect on anything on the page.

Looking at the source code, I can see this line which indicates to me the child CSS is being loaded. But again, changing the stylesheets seems to have no effect on the page, even set at !important.

<link rel="stylesheet" id="maskitto-light-child-style-css" href="https://localhost:8888/wp-content/themes/maskitto-light-child/style.css?ver=4.7.5" type="text/css" media="all">

One thing that is strange… I noticed ver 4.7.5 is being appended to the URI of the style sheet. I can’t tell where that is being set. In the child CSS, I changed the version to 1.0.0. I also tried 5.0.0. Neither worked if that helps at all.