親要素 text-align:center; 子要素: inline-block;
利点: 優れた互換性
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>水平居中1</title> <style> .parent { width: 500px; height: 400px; background: red; text-align: center; } .child { display: inline-block; width: 300px; height: 100px; background: blue; } </style> </head> <body> <p class="parent"> <p class="child"></p> </p> </body> </html>
利点: 優れた互換性
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>水平居中1</title> <style> .parent { width: 500px; height: 400px; background: red; } .child { width: 300px; height: 100px; background: blue; margin:0 auto; } </style> </head> <body> <p class="parent"> <p class="child"></p> </p> </body> </html>
子要素 {display: table; margin: 0 auto;}
親要素: 相対的; 子要素: left :50%;margin-left:-幅の半分
欠点: 子要素の幅を知る必要がある
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>水平居中1</title> <style> .parent { width: 500px; height: 400px; background: red; } .child { width: 300px; height: 100px; background: blue; margin:0 auto; display:table;margin:0 auto;s } </style> </head> <body> <p class="parent"> <p class="child"></p> </p> </body> </html>
親要素: 相対、子要素: 左: 50%。変換:translate (-50%, 0); 利点: 互換性が低い
欠点: 子要素の幅を知る必要がない
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>水平居中1</title> <style> .parent { width: 500px; height: 400px; background: red; position: relative; top: 0; left: 0; } .child { width: 300px; height: 100px; background: blue; position: absolute; top: 0; left: 50%; margin-left: -150px; } </style> </head> <body> <p class="parent"> <p class="child"></p> </p> </body> </html>
フレキシブルボックス: 親要素:表示: flex; justify-content: center;
長所: シンプル
短所: 互換性が低い
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>水平居中1</title> <style> .parent { width: 500px; height: 400px; background: red; position: relative; top: 0; left: 0; } .child { width: 300px; height: 100px; background: blue; position: absolute; top: 0; left: 50%; transform: translate(-50%,0); } </style> </head> <body> <p class="parent"> <p class="child"></p> </p> </body> </html>
れぇぇぇぇぇぇ
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>水平居中1</title> <style> .parent { width: 500px; height: 400px; background: red; display: flex; justify-content: center; } .child { width: 300px; height: 100px; background: blue; } </style> </head> <body> <p class="parent"> <p class="child"></p> </p> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>水平居中1</title> <style> .parent { width: 500px; height: 400px; background: red; display:table-cell; vertical-align:middle; } .child { width: 300px; height: 100px; background: blue; } </style> </head> <body> <p class="parent"> <p class="child"></p> </p> </body> </html>
以上がCSSレイアウトテクニックのまとめと共有の詳細内容です。詳細については、PHP 中国語 Web サイトの他の関連記事を参照してください。