You'll get an HTML file and a folder full of images and other data contained within-don't delete this.
When you want to see the web page, just double-click on the HTML file and you should be able to see it just as it was when you saved it, whether you have a connection or not.
We use this trick a lot when wireframing new sites and tinkering with new copy ideas for our sites.
* The code performance tested on various desktop browsers like Chrome, Firefox, Safari, IE, Edge, and more on Windows and macOS platforms.
Try it. It works ( almost ) on any webpage and completely free.