.day1 .back {
  background-image: url("4.png");
  background-size: cover;
  background-position: center;
}
.day2 .back {
  background-image: url("1.jpg");
  background-size: cover;
  background-position: center;
}
.day3 .back {
  background-image: url("2.jpg");
  background-size: cover;
  background-position: center;
}

.day4 .back {
  background-image: url("8.png");
  background-size: cover;
  background-position: center;
}

.day5 .back {
  background-image: url("5.jpg");
  background-size: cover;
  background-position: center;
}

.day6 .back {
  background-image: url("9.jpg");
  background-size: cover;
  background-position: center;
}

.day7 .back {
  background-image: url("10.jpg");
  background-size: cover;
  background-position: center;
}

.day8 .back {
  background-image: url("12.jpg");
  background-size: cover;
  background-position: center;
}

.day9 .back {
  background-image: url("13.png");
  background-size: cover;
  background-position: center;
}

.day10 .back {
  background-image: url("3.jpg");
  background-size: cover;
  background-position: center;
}
.day11 .back {
  background-image: url("14.jpg");
  background-size: cover;
  background-position: center;
}
.day12 .back {
  background-image: url("15.jpg");
  background-size: cover;
  background-position: center;
}
.day13 .back {
  background-image: url("16.jpeg");
  background-size: cover;
  background-position: center;
}
.day14 .back {
  background-image: url("6.jpg");
  background-size: cover;
  background-position: center;
}

.day15 .back {
  background-image: url("7.jpg");
  background-size: cover;
  background-position: center;
}

.day16 .back {
  background-image: url("17.jpg");
  background-size: cover;
  background-position: center;
}

.day17 .back {
  background-image: url("18.jpg");
  background-size: cover;
  background-position: center;
}

.day18 .back {
  background-image: url("19.jpg");
  background-size: cover;
  /* background-position: center; */
}

.day19 .back {
  background-image: url("20.jpg");
  background-size: cover;
  background-position: center;
}

.day20 .back {
  background-image: url("21.jpg");
  background-size: cover;
  background-position: center;
}

.day21 .back {
  background-image: url("22.jpg");
  background-size: cover;
  background-position: center;
}

.day22 .back {
  background-image: url("23.jpg");
  background-size: cover;
  background-position: center;
}

.day23 .back {
  background-image: url("11.jpg");
  background-size: cover;
  background-position: center;
}
.day24 .back {
  background-image: url("24.jpg");
  background-size: cover;
  background-position: center;
}
.day25 .back {
  background-image: url("25.jpg");
  background-size: cover;
  /* background-position: center; */
}