.bars{
  display: none;
}
.navbar{
  display: block;
}
.heading{
  color: #0190DD; text-align: center; margin-top: 40px;
}
.mainContainter{
  display: flex;
  width: 100%;
  justify-content: center;
  align-items: center;
}
.childContainer{
  width: 80%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 40px;
}
.contentContainer{
  width: 300px;
  height: 430px;
    padding: 20px;
    border: 1px solid black;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    box-shadow: 1px 2px 3px 3px darkgray;
}
@media(max-width: 900px){
  .navbar ul{
    display: flex;
    flex-direction: column;
    position: relative;
    top: 130px;

  }
  .navbar{
    width: 100%;
    display: none;
  }
  .bars{
    display: block;
    font-size: 25px;
    cursor: pointer;
  }
}