gistfile1.txt

#lesson-library .student-group-menu dd {
  display: none;
  position: absolute;
  top: 0px;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 10000;
  width: 200px;
  min-width: 100%;
  border: 1px solid #ccc;
  box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.3);
  -moz-box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.3);
  -webkit-box-shadow: 2px 2px 2px rgba(0, 0, 0, 0.3);
  background-color: #fff;
}