fr) minmax(200px,2fr));
    	}
   </style>
</head>

 <body>

   <div class="wrapper">
     <div class="box">1</div>
     <div class="box">2</div>
     <div class="box">3</div>
     <div class="box">4</div>
     <div class="box">5</div>
     <div class="box">6</div>
     <div class="box">7</div>
     <div class="box">8</div>
     <div class="box">9</div>
     <div class="box">10</div>
     <div class="box">11</div>
     <div class="box">12</div>
   </div>
</body>
</html>
