.flex-container {
     display: flex;
     flex-wrap: wrap;
     justify-content: space-around;
     background-color: #32a852;
 }
 .flex-container div {
     background-color: #c9d1cb;
     margin: 10px;
     padding: 20px;
     flex: 1 1 200px;
 }
 @media (max-width: 600px) {
     .flex-container {
         flex-direction: column;
     }
 }