Definition
The flex-grow CSS property is used in flexbox layouts to specify how much an individual flex item should grow in relation to other flex items within a flex container. It determines the proportion of available space that each flex item should take up along the main axis. The flex-grow property accepts a unitless value, typically a positive number.
For example, flex-grow: 2; would make an item grow twice as much as other items with a flex-grow value of 1. The higher the flex-grow value, the more space the item will occupy relative to others. This property is useful for creating flexible and responsive layouts where items expand or shrink based on available space.