Which CSS property is used to change the order of flex items within a flex container when the screen size changes?Optionsorderflex-flowflex-wrapflex-order

1. ### Break Down the Problem

To determine which CSS property affects the order of flex items within a flex container, we need to analyze the options provided.

2. ### Relevant Concepts

There are four options to consider:

1. order: This property specifies the order in which flex items are displayed.
2. flex-flow: This is a shorthand property for flex-direction and flex-wrap.
3. flex-wrap: This property defines whether flex items should wrap onto multiple lines.
4. flex-order: This is not a valid CSS property.

3. ### Analysis and Detail

• The order property allows you to control the order in which flex items appear in the flex container. By assigning different values to the order property for different screen sizes, you can effectively change the visual order of these items.

• The flex-flow property combines flex-direction and flex-wrap, but does not control the order of the items.

• The flex-wrap property manages item wrapping and does not alter their visual sequence.

4. ### Verify and Summarize

Only the order property is directly responsible for changing the order of flex items, especially when using media queries to adjust styles based on screen size.

Final Answer

The correct answer is order.