:root {
  font-size: 12px;
}
table {
  margin-left: 10%;
  transform:rotate(45deg);
  border-spacing: 1rem;
}
.cell, 
.cell > * {
  display: inline-block;
}
.cell {
  width: 3rem;
  font-size: 0;
}
.cell > * {
  font-size: 1rem;
}
.cell > select {
  width: 1.5rem;
  font-size: 1rem;
  -moz-appearance: none;
  -webkit-appearance: none;
  appearance: none;
  text-align: right;
  text-align-last: right;
}
.cell > a ,
.cell:not(.factor-unit) > button {
  width: 3rem;
  user-select: none;
  font-size: 0.5rem;
  line-height: 0.5rem;
  padding-top: 1px;
  padding-bottom: 1px;
}
.factor-unit > button {
  font-size: 0.5rem;
  width: 1rem;
  height: 1rem;
  vertical-align: top;
  padding: 0.25em;
  margin: 0.25em;
}
.cell > a {
  text-align: left;
}
td {
  transform: rotate(-45deg);
}