源代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>编程字典</title> <style> div { background-color: lightgrey; width: 300px; border: 25px solid green; padding: 25px; margin: 25px; } </style> </head> <body> <h2>演示盒子模型</h2> <p>CSS盒子模型本质上是一个环绕每个HTML元素盒子， 它包括: 边框, 填充, 边距和真实内容.</p> <div>这个文本是一个真实的黑子内容. 25px填充, 25px 边距 和 25px 绿色边框.Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</div> </body> </html>
运行结果