复制代码代码如下: <!doctype html> <html lang=”en”> <head> <meta charset=”UTF-8′′> <title>login</title> <style> body { margin: 0; padding:0; background: #ccc; } #wrap { width:290px; margin:17% auto; } #sid { width: 152px; margin-left: -5px; } #sub { margin-left: 65px; }