hackleberry::Offsetting columns

gistfile1.html

<div class="row">
  <div class="col11 offset1">11</div>
</div>
<div class="row">
  <div class="col5">5</div>
  <div class="col6 offset1">6</div>
</div>
<div class="row">
  <div class="col2">2</div>
  <div class="col2 offset2">2</div>
  <div class="col2 offset4">2</div>
</div>
<div class="row">
  <div class="col3">3</div>
  <div class="col3 offset6">3</div>
</div>
<div class="row">
  <div class="col5">5</div>
  <div class="col5 offset2">5</div>
</div>
<div class="row">
  <div class="col1">1</div>
  <div class="col2 offset1">2</div>
  <div class="col3 offset1">3</div>
  <div class="col4">4</div>
</div>