Use @for to Create a Sass Loop Test Bug

Tell us what’s happening:
Test for this challenge seems a little buggy, I believe my code worked as expected, it did past the test in Safari, but failed in Chrome all the time. The test still failed even I tried it like this:

Your code so far

<style type='text/sass'>
  @for $j from 1 to 6 {
    .text-#{$j} {
      font-size: 10px * $j;

<p class="text-1">Hello</p>
<p class="text-2">Hello</p>
<p class="text-3">Hello</p>
<p class="text-4">Hello</p>
<p class="text-5">Hello</p>

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36.

Link to the challenge: