Use @if and @else to Add Logic To Your Styles array buffer allocation failed

Tell us what’s happening:
I am getting an error as Array Buffer allocation failed. I think its out of the topic. If anyone knows the solution please help.

Your code so far

<style type='text/sass'>
  @mixin border-stroke($val){
    @if $val == light{
      border:1px solid black;
    @else if $val == medium {
      border:3px solid black;
    @else if $val == heavy {
      border:6px solid black;
    @else {
  #box {
    width: 150px;
    height: 150px;
    background-color: red;
    @include border-stroke(medium);

<div id="box"></div>

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