CSS Overflow Property

The overflow property in CSS is used to control what happens when content overflows the boundaries of an element. This can happen when the content is larger than the dimensions of the element, or if the element has a fixed size or position.

The overflow property can have four values:

1.  visible : This is the default value. It means that the content is allowed to overflow the boundaries of the element. If content overflows, it will be displayed outside the element, overlapping any other elements that are nearby.
2.  hidden : This value clips the content to the boundaries of the element. Any content that overflows will be hidden from view. This can be useful for creating scrollable areas or hiding content that should not be visible.
3.  scroll : This value clips the content to the boundaries of the element, but also provides a scrollbar for the user to navigate the overflowed content. This can be useful for creating scrollable areas within an element.
4.  auto : This value behaves like scroll if the content overflows, but if it doesn't overflow, it will behave like visible. This can be useful for creating scrollable areas when you're not sure if the content will overflow or not.

Here is an example that demonstrates the use of overflow:

div {
 width: 200px;
 height: 100px;
 border: 1px solid black;
 overflow: scroll;
}

In this example, we have a div element with a fixed width and height. The border property is added for clarity. The overflow property is set to scroll, which means that if the content inside the div overflows, a scrollbar will be provided to allow the user to scroll through the content.

It is important to use overflow carefully, as it can affect the layout and functionality of your web page. You should always test your code to make sure that the overflow behavior works as expected, and adjust the values as needed to achieve the desired result.