html {
  font-size: 8px;
}
body {
  background: none !important;
  padding: 0;
  box-shadow: none !important;
}
#book {
  margin: 0 60px;
  padding: 20px;
  box-shadow: none;
  border-radius: 0;
  border: none !important;
  background: none !important;
}
#header {
  max-width: 100%;
  min-height: 0;
  padding: 0;
  margin: 0;
  border-color: #999999;
}
#article,
.menubreadcrumbs + #article {
  margin: 0;
  max-width: 100%;
  min-height: 0;
  padding: 20px 0 30px;
  overflow: visible;
}
.menubreadcrumbs > :first-child,
.menubreadcrumbs > :first-child + span {
  display: none;
}
.menubreadcrumbs {
  margin: 0;
  padding: 30px 0 0;
  font-size: 20px;
}
.menubreadcrumbs a {
  color: black;
}
a {
  color: inherit !important;
}
.cover,
.corner,
.sheet,
.sheet .sheet,
.sheet .sheet .sheet,
#main {
  position: relative !important;
  margin: 0;
  background: none !important;
  padding: 0;
  box-shadow: none;
  border-radius: 0;
  border: none;
}
.iframe > * {
  display: none !important;
}
.iframe {
  height: 100px;
  background: #cccccc;
}
.payoff {
  padding: 10px 40px;
}
.mathexerciseengine .box > .monitor,
#MathJax_Message,
.exercises,
.interact,
.related,
.framed,
#share,
#menunextsection,
#main > .corner,
#header p.question,
#menuslider,
#menusite,
#footer {
  display: none !important;
}