@charset "utf-8";

.top {
  background-image: url(./PCtablet.jpg);
  background-size: cover;
  padding: 200px;
}

.concept-text{
  color: #ffff;
  background-color:rgb(21, 18, 70) ;
  opacity: 0.9;
}

h2 {
  padding: 20px 0 0 0;
  border-bottom: 3px dashed rgb(255, 255, 255);
}

.card-deck{
  padding-bottom: 20px;
}

header h1{
  font-size: 25px;
}