.phone-notice { display:none; }
@media (max-width:900px), (max-width:1100px) and (max-height:600px) {
  .phone-notice {
    display:block;
    flex:none;
    padding:14px 18px;
    border-bottom:1px solid #f1a7ae;
    background:#fff0f1;
    color:#b91c1c;
    font-size:15px;
    line-height:1.5;
    text-align:center;
  }
}