.container { border: 2px solid #333; margin: 20px; padding: 10px; }
.item { background-color: #f0f0f0; border: 1px solid #ccc; padding: 20px; text-align: center; }
.flexbox { display: flex; flex-wrap: wrap; }
.item { flex: 1 1 200px;  }
.flexbox { display: flex; flex-wrap: wrap; }
.item { flex: 1 1 200px;  }
@media screen and (max-width: 768px) {
     */
    body {
        background-color: lightblue;
    }

    h1 {
        font-size: 24px;
    }

    .container {
        padding: 10px;
    }

    
}

.vertical-menu {
    list-style-type: none; 
    margin: 0; 
    padding: 0; 
  }
  
  .vertical-menu li {
    background-color: #f1f1f1; 
    margin-bottom: 5px; 
  }
  
  .vertical-menu li a {
    display: block; 
    color: black; 
    padding: 10px; 
    text-decoration: none; 
    font-size: 18px; 
  }
  
  .vertical-menu li a:hover {
    background-color: #ddd; 
  }