@media (max-width: 600px) {

  .aside-document {
  
  position: relative;max-width:97%;width:302px;margin:0 auto;border:1px solid #ddd;
  
  }
}

@media (min-width: 600px) {
  .aside-document {

   position: relative;max-width:302px;width:fit-content;float:left;margin-right:12px;border:1px solid #ddd;
  
  }
}