What is the necessity for including "overflow" in the code?

http://www.example.com/css/tryit.asp?filename=trycss_dropdown_navbar

The link provided above showcases the practice background of a certain website. In the code on the left side, specifically under the style section, there is a "ul" element where the "overflow" property has been applied. My question pertains to the fact that when I remove the overflow property, the entire menu disappears. While this isn't posing a problem per se, I am curious as to why this particular behavior is occurring.

Answer №1

To properly display the progress bar, the browser requires specific limits to work with. Without a set width, it needs guidance on how far the bar can extend.

By setting overflow to hidden, the data is contained within the page width and not displayed beyond it.

Conversely, using scroll enables the data to exceed the page boundaries, allowing users to navigate through it by scrolling.

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