方法一
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>水平垂直居中</title> <style> html, body { width: 100%; height: 100%; padding: 0; margin: 0; } body { display: flex; justify-content: center; align-items: center; } div { width: 100px; height: 100px; background-color: pink; } </style> </head> <body> <div></div> </body> </html>方法二
