@media only screen and (min-width: 360px) and (max-width: 640px) 

{
    .screen1
    {
       display: inline;
    }

    .bg
    {
      display: none;
    }

    .size1
    {
      width: 100%;
      margin-top: 10px;
      border-radius: 10px;
     

    }

    .video-1
    {
      display: none;
    }

    .tt, .tt1
    {
      padding-left: 1%;
      padding-right: 1%;
      font-size: 30px;
    }

    .w2,.w3
    {
      text-align: center;
    }
}