.GoodCard{
  border: 1px solid cyan;
  border-radius: 15px;
  img{
    max-width: 50%;
  }
}

.GoodCard2{
  border: 1px solid cyan;
  border-radius: 15px;
  height: 300px;
  margin: 40px;
  img{
    max-width: 15%;
  }
}

.App {
  header{
      .Logo{
          img{
              max-height:100px;
          }
      }
  }

  footer{
    background-color: #303030; 
      .Logo{
          img{
              max-height:200px;
          }
      }
  }

  main{
    display:flex;
    flex-direction: row;
    aside{
      width:30%;
      background-color: cyan;
    }
  }
}