::-webkit-scrollbar {
        width: 0px;
    }
  /*设计稿件建议在640px,PX与rem是百进制*/
  @media only screen and (max-width: 1080px), only screen and (max-device-width:1080px) {
     html,body {
         font-size:80.5px;/*已改*/
     }
   }
     @media only screen and (max-width: 960px), only screen and (max-device-width:960px) {
     html,body {
         font-size: 75.5px;/*已改*/
     }
   }
     @media only screen and (max-width: 800px), only screen and (max-device-width:800px) {
     html,body {
         font-size:57.5px;/*已改*/
     }
   }
     @media only screen and (max-width: 720px), only screen and (max-device-width:720px) {
     html,body {
         font-size:52px;/*已改*/
     }
   }
     @media only screen and (max-width: 640px), only screen and (max-device-width:640px) {
     html,body {
         font-size:50px;/*已改*/
     }
   }
     @media only screen and (max-width: 600px), only screen and (max-device-width:600px) {
     html,body {
         font-size:44.5px;/*已改*/
     }
   }
     @media only screen and (max-width: 540px), only screen and (max-device-width:540px) {
     html,body {
         font-size:42.75px;/*已改*/
     }
   }
     @media only screen and (max-width: 480px), only screen and (max-device-width:480px) {
     html,body {
         font-size:38px;/*已改*/
     }
   }
     @media only screen and (max-width: 414px), only screen and (max-device-width:414px) {
     html,body {
         font-size:32.5px;/*已改*/
     }
   }
     @media only screen and (max-width: 400px), only screen and (max-device-width:400px) {
     html,body {
         font-size: 30px;/*已改*/
     }
   }
     @media only screen and (max-width: 375px), only screen and (max-device-width:375px) {
     html,body {
         font-size:29.5px;/*已改*/
     }
   }
     @media only screen and (max-width: 360px), only screen and (max-device-width:360px) {
     html,body {
         font-size:28.1px;/*已改*/
     }
   }
     @media only screen and (max-width: 320px), only screen and (max-device-width:320px) {
     html,body {
         font-size:25px;/*已改*/
     }
   }
     @media only screen and (max-width: 240px), only screen and (max-device-width:240px) {
     html,body {
         font-size:19px;/*已改*/
     }
   }