@keyframes coldMove{
        from{left: 278px;}
        to{left: 260px;}
    }
  @-webkit-keyframes coldMove{
        from{left: 278px;}
        to{left: 260px;}
    }
  @keyframes cloud_c2Move{
        from{left: 633px;}
        to{left: 720px;}
    }
  @-webkit-keyframes cloud_c2Move{
        from{left:633px;}
        to{left: 720px;}
    }
  @keyframes fish_aMove{
        from{left: -91px;}
        to{left: -120px;}
    }
  @-webkit-keyframes fish_aMove{
        from{left: -91px;}
        to{left: -120px;}
    }
  @keyframes fish_bMove{
        from{left: 304px;}
        to{left: 200px;}
    }
  @-webkit-keyframes fish_bMove{
        from{left: 304px;}
        to{left: 200px;}
    }
  @keyframes fish_cMove{
        from{left: 623px;}
        to{left: 1300px;}
    }
  @-webkit-keyframes fish_cMove{
        from{left: 623px;}
        to{left: 1300px;}
    }
  @keyframes shakeMove{
        from{transform:rotate(0deg);}
        to{transform:rotate(10deg);}
    }
  @-webkit-keyframes shakeMove{
        from{transform:rotate(0deg);}
        to{transform:rotate(10deg);}
    }
  #m_c{
      animation:coldMove 1.5s linear 0s infinite alternate;
      -webkit-animation:coldMove 1.5s linear 0s infinite alternate;
  }
  #fish_a{
      animation:fish_aMove 9s linear 0s infinite alternate;
      -webkit-animation:fish_aMove 9s linear 0s infinite alternate;
  }
  #fish_b{
      animation:fish_bMove 10s linear 0s infinite alternate;
      -webkit-animation:fish_bMove 10s linear 0s infinite alternate;
  }
  #fish_c{
      animation:fish_cMove 12s linear 0s infinite alternate;
      -webkit-animation:fish_cMove 12s linear 0s infinite alternate;
  }
  #m_c2{
     animation:cloud_c2Move 10s linear 0s infinite alternate;
     -webkit-animation:cloud_c2Move 10s linear 0s infinite alternate;
  }
  #m_s{
    animation:shakeMove .3s linear 0s infinite alternate;
    -webkit-animation:shakeMove .3s linear 0s infinite alternate;
  }
/* .btn_a:hover{
   background: #004681;
 }*/

 .btn_a:hover{
   background: #1f9f43;
 }
.btn_a2:hover{
   background: #5F5F5F;
 }