postcss-px-to-relative-unit/test/input/test.css

A postcss plugin to convert px to relative length units (vw / rem)

.test {
  display: block;
  width: 3.75px;
  height: calc(100% - 15px);
  border: .5px;
  border-width: 3.75px;
  transform: translate3d(.75px, 13.75px, 3.75px);
  color: red;
}