html,
body {
  height: 100%;
  width: 100%;
  margin: 0px;
}

tr,
td,
th {
  padding-top: 2px;
  padding-bottom: 2px;
  padding-left: 5px;
  padding-right: 5px;
}


.arrow-up:after {
  font-size: 12px;
  content: "\0025B2";
}

.arrow-down:after {
  font-size: 12px;
  content: "\0025BC";
}