The display-inside CSS property specifies the inner display type of the box generated by an element, dictating how its contents lay out inside the box.
The display-outside CSS property specifies the outer display type of the box generated by an element, dictating how the element participates in its parent formatting context.
The CSS repeating-linear-gradient function creates an <image> consisting of repeating gradients. It works similarly to the basic linear gradients as described by linear-gradient(), and takes the same arguments. However, it automatically repeats the color stops infinitely in both directions. The color stops' positions shift by multiples of the length of a basic linear gradient (the difference between the last color stops' position and the first).
The flashModes property is an Array of strings identifying each of the flash modes supported by the camera. Possible values are auto, off, on or torch.