/*table */
table{
    border-collapse: collapse;
}
/* table th,table td{
  padding: 3px;
}
 */
table th:hover{
  cursor: pointer;
}


.arrow-down:after,.arrow-up:after{
  content: ' ';
  position: relative;
  left: 2px;
  border: 8px solid transparent;
}

.arrow-down:after{
  top: 10px;
  border-top-color: black;
}

.arrow-up:after{
  bottom: 15px;
  border-bottom-color: black;
}

.arrow-down,.arrow-up{
  padding-right: 10px;
}