<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <style> #customers { padding: 2.5mm 0; width: 40mm; height: 45mm; border: 1px solid gray; background-color: aqua; text-align: center; box-sizing: border-box; } </style> <body> <div id="customers"></div> </body> </html>
单位直接用mm进行设置 进行打印标签纸的设置
