body {
  color: black;
  font-size: 18px;
  font-family: Arial, sans-serif;
}

.ex {
  display: inline;
  text-align: right;
  padding: 3px;
  margin: 24px;
  float: left;
}

.op {
  padding-right: 18px;
}

.eq {
  min-width: 48px;
  border-bottom: 1px solid black;
}