padding属性用于设置内边距，即边框与内容之间的距离。
padding-top,padding-left,padding-right,padding-bottom
或复合写法

没有设置padding时

  1. <!DOCTYPE html>
  2. <html lang="en">
  4. <head>
  5.   <meta charset="UTF-8">
  6.   <meta http-equiv="X-UA-Compatible" content="IE=edge">
  7.   <meta name="viewport" content="width=device-width, initial-scale=1.0">
  8.   <title>Document</title>
  10.   <style>
  11.     div {
  12.       width: 200px;
  13.       height: 200px;
  14.       background-color: blue;
  16.     }
  17.   </style>
  18. </head>
  20. <body>
  21.   <div>
  22.     WinFangWinFang <br>
  23.     WinFangWinFang <br>
  24.   </div>
  25. </body>
  27. </html>

效果图
image.png

设置了padding后

<!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>

  <style>
    div {
      width: 200px;
      height: 200px;
      background-color: blue;
      padding-left: 20px;
      padding-top: 20px;
    }
  </style>
</head>

<body>
  <div>
    WinFangWinFang <br>
    WinFangWinFang <br>
  </div>
</body>

</html>

效果图
image.png