In CSS media queries, min-width and max-width are used to define the range of screen sizes for which a particular set of styles should be applied.

In CSS media queries, min-width and max-width are used to define the range of screen sizes for which a particular set of styles should be applied. Both of these properties are commonly used in responsive web design to create styles that adjust based on the size of the device or browser window.

min-width refers to the minimum width of the device or browser window, below which a set of styles should be applied. On the other hand, max-width refers to the maximum width of the device or browser window, above which a set of styles should be applied.

For example, consider the following media queries:

scssCopy code@media (min-width: 768px) {
  /* Styles for screens with a minimum width of 768 pixels */
}

@media (max-width: 768px) {
  /* Styles for screens with a maximum width of 768 pixels */
}

In the first media query, styles will be applied to screens with a minimum width of 768 pixels or more, while in the second media query, styles will be applied to screens with a maximum width of 768 pixels or less.

In other words, min-width applies styles to screens that are larger than a specified size, while max-width applies styles to screens that are smaller than a specified size.

Both min-width and max-width can be used together in nested media queries to define a more specific range of screen sizes. For example:

arduinoCopy code@media (min-width: 768px) and (max-width: 1024px) {
  /* Styles for screens with a width between 768px and 1024px */
}

In this media query, styles will be applied to screens with a width between 768 pixels and 1024 pixels.