Untitled

<HTML>
  <HEAD>
    <style>
     .resizer{
        min-width:700px;
        margin-left:10px;
        overflow:hidden;
      }
    </style>
  </HEAD>
  <BODY>
    <div class='resizer'>
       YOUR CONTENT goes here
    </div>
 </BODY>
</HTML>

@media screen and (min-width: 480px) {
body {
    background-color: lightgreen;
     }
}