.navbar ul{
  flex-wrap: wrap;
  justify-center: center;
}

.heading{
  font-size: 2.5rem;
}
#pic{
  flex-direction: column;
  align-items: center;
}
#pic img{
  width: 475px;
  height: 300px;
}
#intro h2{
  text-align: center;
  padding: 10px;
}

.input{
  width: 60%;
}
#msg{
  width: 55%;
}
#send{
  width: 20%;
}