CSS aspect-ratio Property
The aspect-ratio CSS property sets a preferred aspect ratio for the box, which will be used in the calculation of auto sizes and some other layout functions.
The following table describes the values of this property.
|Replaced elements with an intrinsic aspect ratio use that aspect ratio, otherwise the box has no preferred aspect ratio. Size calculations involving intrinsic aspect ratio always work with the content box dimensions.
|The box's preferred aspect ratio is the specified ratio of width / height. If height and the preceding slash character are omitted, height defaults to 1. Size calculations involving preferred aspect ratio work with the dimensions of the box specified by box-sizing.
|Sets this property to its default value.
|If specified, the associated element takes the computed value of its parent element animation-delay property.
|Reverts the cascaded value of the property from its current value to the value the property
|Rollback styles to the ones specified in previous cascade layers.
|Resets a property to its inherited value if the property naturally inherits from its parent, and to its initial value if not.
Default CSS Property Values