.lesson-text {
  background: #272727;
  color: white;
  font-family: Montserrat;
  width: 140px;
  font-size: 10px;
  border: 0px;
  border-radius: 3px;
  text-align: center;
}

.lesson-text:hover {
  background: #3a3a3a;
}

.lesson-text-disabled {
  background-color: #5c0000;
  text-decoration: line-through;
}

.lesson-button {
  width: 20px; 
  height: 15px;
  padding: 0px;
  margin: 0px;
}