CSS Flexbox Explained with Simple Examples

Flexbox is a CSS layout tool for arranging items in a row or column, addressing spacing, centring and navigation-bar problems that web designers long struggled with. Applying display: flex to a parent turns its direct children into flex items that can be aligned, spread, stretched and wrapped using a handful of properties. The article highlights six core properties, namely flex-direction, justify-content, align-items, flex-wrap, gap and flex, which together cover most one-dimensional layouts. Its central concept is the pair of axes: the main axis follows the flow of items, while the cross axis runs perpendicular to it, with justify-content and align-items each controlling one. The piece notes that its guidance draws on MDN's reference material and that confusion typically arises from applying properties to the wrong element or the wrong axis.
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