Visible content
The body. Because it is the visible part of the web page.
No, Some work for major companies that in house web production, others work for web design firms. The majority of designers though, do work for themselves.
Work and the visible product of it in the world, is a form of love. I think this explanation further explains it better. www.careerlab.com/comments.htm
The "dark web" is a area of the Internet that is hidden from the average user for a wide variety of reasons (privacy, ties to criminal activities [not everything is associated with crime within the dark web, it's just that people tend to make associations with such], etc).
It was not visible in the fog. He had no visible means of support. An invisible man is not visible to the eye.
The same as it does for visible light.
on
The web address of the Women At Work Museum is: http://www.womenatworkmuseum.org
The people not into web-designing do not need HTML to work. Only web designers are in the need of that.
The web address of the Museum Of Work And Culture is: http://www.rihs.org
That his wife had been hard at work clearing the garage was clearly visible. The impact with the post left a visible dent in the rear of his car. Humans and most other mammals can only see the frequencies of visible light.