You are describing leverage.

As a contractor hourly work is often relationship suicide every 2-3 years when your value is questioned no matter how great the baseline.

To move towards value based pricing, and not splitting hairs on time and hours, by billing minimum half or full days with the understanding not much gets done less.

Of course value based pricing, at a weekly or monthly retainer is the next step.

I’ve done all of the above.

The client doesn’t care if it’s an html page it’s the value it creates or enables.

Rarely do most businesses wake up wanting to buy more tech and software dev, they have business problems or outcomes to solve.

If the solution was a single html page I wouldn’t even talk to the client in terms of an html page or not.