/* math */
dfn, div.eq {
  white-space: nowrap;
  font-family: sans-serif;
  font-style: normal;
  color: navy;
}
div.eq {
   margin-left: 3em;
   margin-right: 1em;
}
div.eq a {float:right}

span.h {  /* huge */
  font-size:150%; 
}

span.o, span.s, span.f {
  display:-moz-inline-box;
  -moz-box-orient:vertical;
  display:inline-block; 
  vertical-align:middle; 
  margin:0 0.2em;
}

span.x, span.i, span.d, span.n, span.o span {
  display: block;
}

span.x, span.d, span.n, span.s, span.o span {
  text-align:center;
  margin:0 0.2em;
}

span.n, span.d {
  font-size: 90%;
}

span.i {
  text-align: left;
  margin:0 0.2em 0 0;
}
span.b {
  font-weight: bold;
}

span.x, span.i, span.f span.f {
  font-size: 80%;
}

span.n {
  border-bottom:solid 1px navy;
}

span.v, span.m {
  display:-moz-inline-box;
  -moz-box-orient:vertical;
  display:inline-block;
  vertical-align:middle; 
}
span.v span.e, span.m span.e {
  font-size: 90%;
  white-space:nowrap;
  display: block;
  text-align:center;
  margin:0.2em;
}
/*span.m > span.e { height:2em; }*/ /* hide ie 6 */

span.lb, span.rb {
  margin:0; 
  padding:0; 
  vertical-align: middle; 
  border-top:1px solid navy; 
  border-bottom:1px solid navy;
}
span.lb {
  border-left:1px solid navy; 
}
span.rb {
  border-right:1px solid navy; 
}
span.lbrk2, span.rbrk2 {
  font-size:200%; 
}
span.lbrk3, span.rbrk3 {
  font-size:300%; 
}