.under1 {
background: linear-gradient(transparent 50%, #FFC2C1 50%);
}
.under2 {
background: linear-gradient(transparent 50%, #a8eaff 50%);
}
.under3 {
background: linear-gradient(transparent 50%, #fff951 50%);
}
.under4 {
background: linear-gradient(transparent 50%, #86f751 50%);
}
.under5 {
  border-bottom: solid 3px #4f71f9;
  }
.under6 {
  border-bottom: solid 3px red;
  }
.under7 {
background: linear-gradient(transparent 50%, #ffcc66 50%);
}
.under8 {
background: linear-gradient(transparent 50%, #c47cff 50%);
}