body.demo_lessons .site-header {
  z-index: 1;
}

.curriculum-sections li ul.section-content {
  display: none;
}

.curriculum-sections li ul.section-content.open {
  display: block;
}

.curriculum-sections li .section-header .section-left:hover {
  cursor: pointer;
}

#learn-press-course-curriculum.course-curriculum ul.curriculum-sections .section-content .course-item.current {
  background-color: #f9f9f9 !important;
}