FPGC6/Documentation/docs/stylesheets/extra.css

/*Mod to increase the maximum page width*/
@media only screen and (min-width: 76.25em) {
  .md-main__inner {
    max-width: 145em;
  }
  .md-sidebar--primary {
    left: 0;
  }
  .md-sidebar--secondary {
    right: 0;
    margin-left: 0;
    -webkit-transform: none;
    transform: none;   
  }
}