.oui1{
  height: 420px;
  width:1300px ;
  margin-top: -20px;
  margin-left: -80px;


}

.b11{
  text-align: center;

  float: left;
  height: 200px;
  width: 320px;
  margin-left: 80px;

  margin-top: -20px;


}
.b31{
  text-align: center;
  margin-top: -20px;
  float: left;

  height: 200px;
  width: 320px;
  margin-left: 100px;
  border: 1px solid blue;

}

.b21{
  text-align: center;
  height: 200px;
  width: 300px;
  float: left;
  margin-top: -10px;

  margin-left: 100px;
  border: 1px solid green;

}


.b41{
  text-align: center;

  height: 200px;
  width: 320px;
  float: left;
  margin-left: 80px;
  margin-top: 15px;

  border: 1px solid yellow;


}

.b51{
  text-align: center;
  height: 200px;
  width: 320px;
  text-align: center;
  float: left;

  margin-top: 15px;

  margin-left: 100px;
  border: 1px solid greenyellow;

}

.b61{
  text-align: center;
  height: 200px;
  width: 320px;
  float: left;

  margin-top: 15px;

  margin-left: 100px;


}





.menub1{
  text-align: center;

  float: left;
  height: 160px;
  width: 160px;
margin-left: -20px;
  margin-top: 0px;



}
.menub3{
  text-align: center;

  float: left;
  height: 160px;
  width: 160px;
  margin-left: -20px;
  margin-top: 0px;

}

.menub2{
  text-align: center;

  float: left;
  height: 160px;
  width: 160px;
  margin-left: -20px;
  margin-top: 0px;

}


.menub4{
  text-align: center;

  float: left;
  height: 160px;
  width: 160px;
  margin-left: -20px;
  margin-top: 0px;

}

.menub5{
  text-align: center;

  float: left;
  height: 160px;
  width: 150px;
  margin-left: -9px;
  margin-top: 0px;

}

.menub6{
  text-align: center;

  float: left;
  height: 160px;
  width: 160px;
  margin-left: -20px;
  margin-top: 0px;

}