```html可爱编程代码 body { fontfamily: Arial, sansserif; backgroundcolor: f0f0f0; padding: 20px; } .container { maxwidth: 600px; margin: 0 auto; backgroundcolor: fff; padding: 20px; borderradius: 8px; boxshadow: 0 0 10px rgba(0, 0, 0, 0...