body {font-family : arial, helvetica, sans-serif;
      text-align : justify;
      width:500px;
      margin:0 auto;
     }

h1 { text-align : justify; }
h2 { text-align : left; }
strong { font-weight: bolder; font-size: 2em; }

div.box {
   margin-left: 8%;
   margin-right: 8%;
   text-align: center;
   border: solid;
   border-width: 1px;
   padding-left: 1em;
   padding-right: 1em;
   padding-top: 0.75em;
   padding-bottom: 0.5em;
}

div.wrap {
    width:500px;
    margin:0 auto;
}