.footer {
  background-color: #f5f5f5;
  padding: 15px 0 7px 0;
  margin-top: 20px;
  padding: 30px 0 20px 0;
}

.table-container {
  width: 100%;
  overflow: scroll;
  height: 400px;
  margin: 20px 5px;
}

.dataTables_info {
  font-size: 1.2em;
  margin: 15px 0 20px 0;
}

#data-view td {
  font-size: 1.1em;
  padding: 4px 0;
}

dt, dd {
  font-size: 1.1em;
  padding-bottom: 4px;
}

.table.api-item {
  width: 90%;
  margin: 30px auto;
}

#download {
  font-size: 1.2em;
}

#loading {
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 10px;
  right: 0px;
  padding-top: 100px;
  z-index: 99;
  background-color: #000;
  opacity: 0.5;
  color: #fff;
  text-align: center;
  font-size: 10vh;
}

.footer {
  background-color: #f5f5f5;
  padding: 15px 0 7px 0;
  margin-top: 20px;
  padding: 30px 0 20px 0;
}

.table-container {
  width: 100%;
  overflow: scroll;
  height: 400px;
  margin: 20px 5px;
}

.dataTables_info {
  font-size: 1.2em;
  margin: 15px 0 20px 0;
}

#data-view td {
  font-size: 1.1em;
  padding: 4px 0;
}

dt, dd {
  font-size: 1.1em;
  padding-bottom: 4px;
}

.table.api-item {
  width: 90%;
  margin: 30px auto;
}

#download {
  font-size: 1.2em;
}

#loading {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  padding-top: 100px;
  z-index: 99;
  background-color: #000;
  opacity: 0.5;
  color: #fff;
  text-align: center;
  font-size: 10vh;
}

Remove spacing around loading splash
Remove spacing around loading splash
