您需要管理它以响应屏幕大小。查看以下链接很有用：https://www.w3schools.com/css/tryit.asp?filename=tryresponsive_mediaquery_breakpoints

/* Extra small devices (phones, 600px and down) */
@media only screen and (max-width: 600px) {
   body { margin: 100px; }
}

/* Small devices (portrait tablets and large phones, 600px and up) */
@media only screen and (min-width: 600px) {
   body { margin: 20px; }
}