The CSS images module defines the types of images that can be used (the <image> type, containing URLs, gradients and other types of images), how to resize them and how they, and other replaced content, interact with the different layout models.
The CSS images module also defines the image-resolution property. Currently, no browsers support this feature.
linear-gradient()radial-gradient()repeating-linear-gradient()repeating-radial-gradient()conic-gradient()repeating-conic-gradient()cross-fade()element()image-set()The CSS images module also defines the image() function. Currently, no browsers support this feature.
Presents a specific type of CSS images, gradients, and how to create and use these.
Describes the common technique grouping several images in one single document to save download requests and speed up the availability of a page.
Introduces the properties that only apply to replaced elements.
Learn about the aspect-ratio property, discuss aspect ratios for replaced and non-replaced elements, and examine some common aspect ratio use cases.
| Specification |
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| CSS Images Module Level 3> |
| CSS Images Module Level 4> |
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https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_images