<!DOCTYPE html>
<style>
progress {
  width: 100px;
  height: 100px;
  appearance: none;
  position: relative;
}
progress::before {
  position: absolute;
  content: "";
  width: 50%;
  height: 100%;
  background: green;
}
progress::after {
  position: absolute;
  content: "";
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: green;
}
</style>
<progress></progress>