The overflow attribute controls how element content beyond the container is displayed. The specific values are: visible: display the overflow content hidden: hide the overflow content scroll: add a scroll bar auto: the browser adds a scroll bar as needed initial: reset to the default value inherit: inherit the parent element attributes
The role of overflow in CSS
The overflow property controls how the browser handles the content of an element that exceeds the boundaries of its container. It determines whether the element is shown, hidden, or scrolled when its content overflows.
Basic syntax:
<code class="css">overflow: [value];</code>
Among them, [value] can be the following values:
1. visible: Display overflow content, no clipping should be applied.
2. hidden: Hide overflowing content so that no content can be seen within the element border.
3. scroll: Add a scroll bar so that users can scroll to view overflowing content.
4. auto: The browser automatically adds scroll bars as needed.
5. initial: Reset the overflow property to the browser default value (usually visible).
6. inherit: Inherit the overflow attribute from the parent element.
Example:
<code class="css">.container { width: 200px; height: 100px; overflow: hidden; } .content { width: 300px; height: 200px; }</code>
In this example, the container's overflow property is set to hidden, which means that any .content content that exceeds the boundaries of the container will be hidden.
Additional Properties:
The overflow property is also used with other CSS properties to control overflow behavior:
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