Team:HFUT-China/attrcss

div.container{ background-image: url(); background-repeat: no-repeat; background-position: center center; background-attachment: fixed; background-size: cover; color:#fff; }

div.container div.sec-title{ }

@media (min-width: 1300px) {

   div#all {
       background-image: url();
       background-repeat: no-repeat;
       background-size: 450px 450px;
       width: 450px;
       height: 450px;
   }
   

}

@media (min-width: 1050px) and (max-width: 1300px) {

   div#all {
       background-image: url();
       background-repeat: no-repeat;
       background-size: 300px 300px;
       width: 300px;
       height: 300px;
   }
   

}

@media (min-width: 800px) and (max-width: 1050px) {

   div#all {
       background-image: url();
       background-repeat: no-repeat;
       background-size: 250px 250px;
       width: 250px;
       height: 250px;
   }
   

}

@media (max-width: 800px){

   div#all {
       background-image: url();
       background-repeat: no-repeat;
       background-size: 250px 250px;
       width: 250px;
       height: 250px;
   }
   

}