CSS Margin | o7planning.org
CSS] marginとpaddingの使い分けに本気出してみた。が、borderもちゃんと考える。 - Qiita
CSS padding vs margin: how to decide which to use
Everything You Need To Know About CSS Margins — Smashing Magazine
margin-bottom - CSS: Cascading Style Sheets | MDN
HTML/CSS】画像(imgタグ)の下にできる謎の隙間ができる原因と消す方法を解説 | みぎさんドットコム
ASCII.jp：CSS初学者がきちんと理解したい、marginとpaddingとborderの複雑な関係
Box model
CSS： marginの正しい理解 - kojika17
paddingとmargin相殺 - テーマ開発ドキュメント（Ver2用）
Learn the CSS Box Model by Building a Rothko Painting - Step 21 - HTML-CSS - The freeCodeCamp Forum
css - Expand parent div based on child size + margin - Stack Overflow
html - Cant remove the margin of a div inside a div - Stack Overflow
CSS マージンと余白
CSSのmarginとは？paddingとは？余白の指定方法まとめ
Padding vs Margin: What's the Difference in CSS?
CSS 外部余白】marginの書き方・autoでの真ん中寄せ - WEBST8のブログ
css - Set space/margin all around an absolute <div> which is inside a scrollable <div> - Stack Overflow
What Is The Box Model? A Very Simple Explanation - PlanFlow | PlanFlow
Calculating Percentage Margins in CSS - Hongkiat
html - How to set css margin/padding to a child div based on its own width, and not of parent? - Stack Overflow
Everything You Need To Know About CSS Margins — Smashing Magazine
