body {
  background-color: #111010;
}


.lesson-container {
  background-color: #2E2B2B;
  display: flex;
  justify-content: center;
  padding-bottom: 10px;
}

.lesson-title {
  font-size: 35px;
  font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
  font-weight: bold;
  text-decoration: underline;
  color: #2480E8;
}

.container {
  width: 100%;
  height: auto;
  background-color: #2E2B2B;
  margin-top: 55px;
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  flex-flow: wrap;  
}

  
.container-2 {
  width: 100%;
  height: auto;
  background-color: #2E2B2B;
  margin-top: 5px;
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  flex-flow: wrap; 
}

.Box {
  width: 20%;
  height: 150px;
  background-color: white;
  margin: 15px;
  color: #2480E8;
  text-align: center;
  font-size: 45px;
  font-family:Arial, Helvetica, sans-serif ;
  font-weight: bold;
  border: 3px solid #2480E8;
}

.number {
  font-size: 15px;
  font-family: Arial, Helvetica, sans-serif;
  color: black;
}

@media (max-width: 320px) {
  .Box {
    width: 30%;
    height: 80px;
    font-size: 25px;     
  }

  .number {
    font-size: 12px;
    margin: 2px 2px;
  }

  .lesson-title {
    font-size: 23px;
  }
}
    
@media (max-width: 700px) {
  .Box {
    width: 30%;
    height: 80px;
    font-size: 25px;     
  }

  .number {
    font-size: 12px;
    margin: 2px 2px;
  }

  .lesson-title {
    font-size: 23px;
  }
} 
     
@media (max-width: 1024px) {
  .Box {
    width: 30%;
    height: 80px;
    font-size: 25px;     
  }

  .number {
    font-size: 12px;
    margin: 2px 2px;
  }

  .lesson-title {
    font-size: 23px;
  }
}