
  .infinite {
    width: 400px; /* close enough */
  }

  /* visualize size contribution */
  .container > div {
    float: left;
    border: solid orange 20px;
    border-style: none solid;
  }
  .container > div > div {
    border-right: solid 20px aqua;
  }

  /* test min-width */
  /* content = 100% = 80px = 4ch + border */
  /* choose sizes that are larger than content to see if how they take effect */
  .raw-percent {
    min-width: 200%;
  }
  .calc-percent {
    min-width: calc(160px + 0%);
  }
  .