e="assert" content="Properties specified in a :left or :right @page rule override those specified in an @page rule that has no pseudo-class specified." />
  <style type="text/css">* { margin: 0; padding: 0 }
  
    @page {
        margin: 15%;
    }
    @page :right {
        margin-left: 50%;
    }
    @page :left {
        margin-right: 50%;
    }
    div {
        page-break-after: always;
        border: medium solid blue;
        padding: 10px;
    }
    
  </style>
 </head>
 <body>