pre.smallexample {background-color:rgb(240,240,240);
                     font-family: courier new,courier,fixed;
                     font-size: 14px;
                     margin: 0px 40px 0px 40px;
                     border-width: 1px 2px 2px 1px;
                     border-top-style: dotted;
                     border-left-style: dotted;
                     border-right-style: solid;
                     border-bottom-style: solid;
                     border-color: black;}
   code             {color:black;
                     font-family: courier new,courier,fixed;
                     font-size: 14px;}
   body             {font-family: arial,helvetica,sans-serif;
                     font-size: 16px;
                     width: 800px;
                     text-align: justify}
   samp             {font-family: courier new,courier,fixed;
                     font-size: 14px}