#questionid{
    /* font-size:2vw; */
    text-align: center;
}
#validation{
    /* font-size:2vw; */
    text-align: center;
    height: 20vw;
}
#slide_demo{
    text-align: center;
    /* font-size:2vw; */
}
#buttondiv{
    text-align: center;
}
#comments{
  text-align: center;
  height: 10vh;
  /* font-size: 2vw; */
}