#leftpnselect1, #midpnselect1, #rightpnselect1 {
  text-align: center;
}
#leftslider, #midslider, #rightslider {
  width: 100%;
}
#pnselect, #pnselect1 {
  text-align: center;
}
#btn, #btn1 {
  justify-content: center;
  display: flex;
}