Apply a Style Until a Condition is Met with @while how can I solve it

Tell us what’s happening:

Your code so far


<style type='text/sass'>
  $x= 1;
  @while $x < 11{
  .text-#{$x} {font-size:5px*$x}
  $x: $x + 1;
  }
  
  
</style>

<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>
<p class="text-6">Hello</p>
<p class="text-7">Hello</p>
<p class="text-8">Hello</p>
<p class="text-9">Hello</p>
<p class="text-10">Hello</p>

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:62.0) Gecko/20100101 Firefox/62.0.

Link to the challenge:
https://learn.freecodecamp.org/front-end-libraries/sass/apply-a-style-until-a-condition-is-met-with-while

Thanks I have solved the problem. Forgot to put :