![]() ![]() Of note with this value is that you get BOTH horizontal and vertical scrollbars no matter what, even if the content requires only one or the other. ![]() Setting the overflow value of a box to scroll will hide the content from rendering outside the box, but will offer scrollbars to scroll the interior of the box to view the content. So for example a user has their default font size set larger than you would expect, you may be pushing text outside of a box and hiding it completely from their view. However, bear in mind that content that is hidden in this way is utterly inaccessible (short of viewing the source). This is particularly useful in use with dynamic content and the possibility of an overflow causing serious layout problems. This literally hides any content that extends beyond the box. The opposite of the default visible is hidden. Generally, you shouldn’t be setting static heights on boxes with web text in them anyway, so it shouldn’t come up. The important thing to remember here is that even though the content is visible outside of the box, that content does not affect the flow of the page. ![]() So in general, there is no reason to explicitly set this property to visible unless you are over-riding it from being set elsewhere. If you don’t set the overflow property at all, the default is visible. Let’s take a look at each and then discuss some common uses and quirks. There are also sister properties overflow-y and overflow-x, which enjoy less widespread adoption. There are four values for the overflow property: visible (default), hidden, scroll, and auto. But what happens when you do set a specific height or width on a box, and the content inside cannot fit? That is where the CSS overflow property comes in, allowing you to specify how you would like that handled. For example, if you don’t set the height of a box, the height of that box will grow as large as it needs to be to accommodate the content. By behavior, I mean how the box handles it when the content inside and around it changes. The sizing, positioning, and behavior of these boxes can all be controlled via CSS. Every single element on a page is a rectangular box. ![]()
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