.task,.solution {
  margin-bottom: 30px;
  font-size: 14pt;
}

.taskNr {
  /*margin-right: 10px;*/
  float: left;
  width: 3em;
}

.taskNr::after {
  content: ')';
}

.op {
  margin-left: 10px;
  padding-bottom: 1px;
  padding-right: 5px;
  padding-left: 5px;
  font-size: 8pt;
  vertical-align: top;
  border-bottom: 1px solid black;
}

.op > sup {
  top: 0em;
  vertical-align: top;
}

.op2::before {
  content: '\25ba'; 
  margin-right: 10px;
  color: black;
  font-size: 10pt;
  margin-left: -3px;
}

.hint {
  float:right;
  margin-left: 20px;
  font-style: italic;
  font-size: 8pt;
  padding-top: 4pt; /* to center the text vertically */
}

.no-select {
  -moz-user-select: none; 
  -khtml-user-select: none; 
  -webkit-user-select: none; 
  -o-user-select: none; 
}

.hoverGrey {
  background-color: #ffffff;
}

.hoverGrey:hover {
  background-color: #e6e6e6;
}

.page {
  page-break-after: always;
}

.hidden {
  display:none;
}

.only-print {
  display:none;
}