该 填充机顶指定元素的顶部填充。它设置元素的顶部填充。这可以采用％的长度值。
<html> <head> </head> <body> <p style = "padding-top: 15px; border:2px solid orange;"> This is demo content. </p> <p style = "padding-top: 15%; border:2px solid orange;"> This is another demo content. </p> </body> </html>