Using CSS3’s Flexible Box Model

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CSS3’s flexible box model is ideal for structuring pages. It enables you to treat every child of an element as a box within that element and arrange the children horizontally or vertically. Here’s a very basic example in which the <body> element is used as a container for three children:
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Now let’s use the CSS3 flexible box model to convert the three divisions within the body into flexible boxes:
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display:box tells ...

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