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C # tutorial
The CSS object-fit property is used to specify how an<img> or <video> should be resized to fit its container
The CSS object-fit
property is used to specify how an <img> or <video> should
be resized to fit its container.
This property tells the content to fill the container in a variety of ways; such as "preserve that aspect ratio" or "stretch up and take up as much space as possible".
Look at the following image from Paris. This image is 400 pixels wide and 300 pixels high:
However, if we style the image above to be half its width (200 pixels) and same height (300 pixels), it will look like this:
img {
width: 200px;
height:
300px;
}
We see that the image is being squished to fit the container of 200x300 pixels (its original aspect ratio is destroyed).
Here is where the object-fit
property comes
in. The object-fit
property can take one of the
following values:
fill
- This is default. The image is resized to fill the
given dimension. If necessary, the image will be stretched or squished to fitcontain
- The image
keeps its aspect ratio, but is resized to fit within the given dimensioncover
- The image keeps its aspect ratio
and fills the given dimension. The image will be clipped to fitnone
- The image is not resizedscale-down
- the image is
scaled down to the smallest version of none
or
contain
If we use object-fit: cover;
the image keeps its aspect ratio
and fills the given dimension. The image will be clipped to fit:
img {
width: 200px;
height:
300px;
object-fit: cover;
}
If we use object-fit: contain;
the image
keeps its aspect ratio, but is resized to fit within the given dimension:
img {
width: 200px;
height:
300px;
object-fit: contain;
}
If we use object-fit: fill;
the image is
resized to fill the given dimension. If necessary, the image will be
stretched or squished to fit:
img {
width: 200px;
height:
300px;
object-fit: fill;
}
If we use object-fit: none;
the image is not
resized:
img {
width: 200px;
height:
300px;
object-fit: none;
}
If we use object-fit: scale-down;
the image is
scaled down to the smallest version of none
or
contain
:
img {
width: 200px;
height:
300px;
object-fit: scale-down;
}
Here we have two images and we want them to fill the width of 50% of the browser window and 100% of the height.
In the following example we do NOT use object-fit
, so when we resize the browser window, the aspect ratio of the images will be destroyed:
In the next example, we use object-fit: cover;
, so when we resize the browser window, the aspect ratio of the images
is preserved:
The following example demonstrates all the possible values of the object-fit
property
in one example:
.fill {object-fit: fill;}
.contain {object-fit: contain;}
.cover {object-fit: cover;}
.scale-down {object-fit: scale-down;}
.none {object-fit: none;}
The following table lists the CSS object-* properties:
Property | Description |
---|---|
object-fit | Specifies how an <img> or <video> should be resized to fit its container |
object-position | Specifies how an <img> or <video> should be positioned with x/y coordinates inside its "own content box" |