Google Chrome Inspect
Google Chrome’s “Inspect” tool is a tremendous help to anyone creating websites.
In Google Chrome, right click and select “Inspect.”
A dialog will come up with a number of options on the top menu bar. Here are some things to explore:
Clicking “Elements” will show you the CSS rules that apply to each part of your site, enabling you to try changes right from your browser
Other browsers have similar built in developer tools; pick your favorite and learn as much as you can about it to keep your site in tip-top shape!