CSS基礎】box-sizing:border-boxで高さと幅を調整する方法を紹介｜TechTechMedia
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![Box model and border-box sizing - CSS in Depth [Book]](https://www.oreilly.com/library/view/css-in-depth/9781617293450/ifcfig01.jpg "Box model and border-box sizing - CSS in Depth [Book]")
Box model and border-box sizing - CSS in Depth [Book]
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CSS box-sizing Property - explained
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CSS box-sizing
親ボックスからのはみ出しを防ぐ方法 | Designmemo（デザインメモ）-初心者向けWebデザインTips-
