How to Use the CSS Overflow Property
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The overflow
property defines what happens when the content cannot fit inside the content box.
By default, CSS tries to avoid content loss, meaning the content will flow outside of the box if necessary. For example, this <p>
element is contained inside a 300 x 100px
box:
<p>Lorem ipsum. . .</p>
p {
width: 300px;
height: 100px;
border: solid;
}
As you can see, the content gets pushed outside of the box and overlaps with the next element.
This is a bad thing when you are trying to create a webpage layout that depends on this box having a fixed size. So instead, you can tell the browser to hide the overflown content by setting overflow
to hidden
.
p {
width: 300px;
height: 100px;
border: solid;
overflow: hidden;
}
But now, we have a new problem. The information is lost, and the user cannot see the full content. A better option would be setting overflow
to scroll
, allowing the user to scroll inside the defined box.
p {
width: 300px;
height: 100px;
border: solid;
overflow: scroll;
}
Alternatively, if you are not sure about the actual size of the content, and you don't know if scrolling is necessary, you can let the browser decide by setting overflow
to auto
. The scroll bar will only appear when the content overflows and scrolling is necessary.
p {
width: 300px;
height: 100px;
border: solid;
overflow: auto;
}
The content will not be hidden in this case.
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <link rel="stylesheet" href="/styles.css"> </head> <body> <p> Lorem ipsum, dolor sit amet consectetur adipisicing elit. Assumenda magnam deserunt, neque molestiae, quo aliquid explicabo saepe repellendus consequatur facilis cumque esse ipsum consequuntur qui officiis! Totam adipisci minus tenetur, dignissimos praesentium eos, amet modi omnis quaerat velit eligendi dolorem veritatis fuga ipsam exercitationem numquam accusantium! Beatae laudantium nesciunt accusamus nostrum consectetur adipisci quos voluptatibus ipsam. Iusto recusandae eius illum neque tempora quam quia officia veritatis aperiam porro ducimus nobis, odio perferendis, cumque, repellat impedit laboriosam fuga minus nostrum quis fugit? Nobis, eius suscipit, voluptate rem explicabo, a molestiae consectetur quisquam ipsam voluptatum laudantium recusandae quasi ad error! Corrupti, cupiditate? </p> <p> Lorem ipsum, dolor sit amet consectetur adipisicing elit. Assumenda magnam deserunt, neque molestiae, quo aliquid explicabo saepe repellendus consequatur facilis cumque esse ipsum consequuntur qui officiis! Totam adipisci minus tenetur, dignissimos praesentium eos, amet modi omnis quaerat velit eligendi dolorem veritatis fuga ipsam exercitationem numquam accusantium! Beatae laudantium nesciunt accusamus nostrum consectetur adipisci quos voluptatibus ipsam. Iusto recusandae eius illum neque tempora quam quia officia veritatis aperiam porro ducimus nobis, odio perferendis, cumque, repellat impedit laboriosam fuga minus nostrum quis fugit? Nobis, eius suscipit, voluptate rem explicabo, a molestiae consectetur quisquam ipsam voluptatum laudantium recusandae quasi ad error! Corrupti, cupiditate? </p> </body> </html>