mat-card {
  margin-bottom: 20px;
  background-color: #4dd0e1;
  cursor: pointer;
}

mat-card-content > :first-child {
  margin-top: 20px;
}

mat-toolbar {
  border-radius: 10px;
  margin-bottom: 20px;
  background-color: #bbdefb;
}

mat-icon {
  color: white;
}

.correct-icon {
  color: green;
}

.read-icon {
  color: blue;
}

.favorite-icon {
  color: #fdd835;
}

.proffesor-icon {
  background-size: cover;
  margin-right: 10px;
  margin-top: 10px;
}