body {
  
}

div.row {
  
}

div[class^=col], div.w-50 {
  
  text-align:center;
}

.main-wrapper {
  height: 85vh;  
}
.main-row-mm{

}

.section {
  height: 100%;  
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}