title: Scss for loop generated with space
body: <p>I have problem with sass code...</p>
  
  <pre><code> @for $i from 1 through 3 {
        &amp;:nth-child(#{$i}) { 
          transition: all (0.2*$i)s ease; 
        }
      }
  </code></pre>
  
  <p>its compiled like this</p>
  
  <pre><code>label p:nth-child(1) {
    transition: all 0.2 s ease;
  }
  label p:nth-child(2) {
    transition: all 0.4 s ease;
  }
  label p:nth-child(3) {
    transition: all 0.6 s ease;
  }
  </code></pre>
  
  <p>Need to remove space after time </p>
  
  <p>thanx</p>