.text-center {
  text-align: center;
}

.mt-20 {
  margin-top: 20px;
}

.mt-40 {
  margin-top: 40px;
}

.mt-60 {
  margin-top: 60px;
}

.mb-20 {
  margin-bottom: 20px;
}

.mb-40 {
  margin-bottom: 40px;
}

.mb-60 {
  margin-bottom: 60px;
}

.w-100 {
  width: 100%;
}

.relative {
  position: relative;
}

.overflow-hidden {
  overflow: hidden;
}