html, body {
  margin:0;
  padding:0;
  height:100%;
  width:100%;
}

/* hide site indices on this page */
.indextable {
  display:none;
}

.calc_cell,.noborder {
  margin:0;
  padding:0;
  border:0;
}

button {
  margin:0;
  height:100%;
  vertical-align:top;
}

.controlspan {
  display:inline-block;
  padding:2px;
  margin:0;
  border:0;
  border-left:1px solid black;
  border-top:1px solid black;
}