BODY           { font-family: tahoma, arial, helvetica, sans-serif;
                 color: #282850;
                 background-image: url("images/prob_background.jpg");
               }
TABLE          { background-image: url("images/prob_background.jpg");
               }
TH             { font-weight: bold;
                 background: #282850;
                 color: #F0F0F8;
               }
TD.head        { font-weight: bold;
                 background: #282850;
                 color: #F0F0F8;
               }
TD.head2       { font-weight: bold;
                 text-align: center;
               }
TD             { /* background: #F0F0F8; */
                 background-image: url("images/prob_background.jpg");
                 color: #282850;
                 background-image: none;
               }
P              { background-image: url("images/prob_background.jpg");
                 /* background: #F0F0F8; */
                 color: #282850;
               }
H1             { font-size: xx-large;
                 font-family: verdana, helvetica, sans-serif;
                 text-align: center;
                 background: #282850;
                 color: #F0F0F8;
               }
H2             { font-size: x-large;
                 font-family: verdana, helvetica, sans-serif;
                 text-align: center;
                 background: #282850;
                 color: #F0F0F8;
               }
H3             { font-size: large;
                 font-family: verdana, helvetica, sans-serif;
                 background: #282850;
                 color: #F0F0F8;
               }
H3.definition  { background: #802020;
                 color: #F0F0F8;
               }
SPAN.equation  { font-family: "times new roman", serif;
                 font-size: 110%;
               }
SPAN.contact   { font-size: 75%;
                 font-family: arial, helvetica, sans-serif;
                 text-align: center;
                 font-style: italic;
               }
SPAN.copyright { font-size: 75%;
                 font-family: arial, helvetica, sans-serif;
                 text-align: center;
                 background-image: url("images/prob_background.jpg");
                 color: #161668;
               }
SPAN.note      { font-size: 75%;
               }
SPAN.keyword   { color: red;
               }
P.definition   { /* background: #F0F0F8; */
                 background-image: url("images/prob_background.jpg");
                 color: #802020;
               }
P.hmenu        { font-size: 80%;
                 text-align: center;
                 background-image: url("images/prob_background.jpg");
                 color: #161668;
               }
.trailer       { font-size: 75%;
                 font-family: arial, helvetica, sans-serif;
                 text-align: center;
               }
.debug         { display: none;
               }
.hidden        { display: none;
               }
.nothidden     { font-size: 100%
               }
A:link         { color: #90208A;
                 background-image: url("images/prob_background.jpg");
               }
A:active       { color: #90208A;
                 /* background: #F0F0F8; */
                 font-size: 125%;
                 background-image: url("images/prob_background.jpg");
               }
A:visited      { color: #902A08;
                 /* background: #F0F0F8; */
                 background-image: url("images/prob_background.jpg");
               }