Example
Markup
<div style="max-width: 300px;">
<div class="Placeholder">
  <div class="Placeholder-item" style="width: 40%;"></div>
  <div class="Placeholder-item" style="width: 80%;"></div>
  <div class="Placeholder-item" style="width: 80%;"></div>
</div>
Source: components/atoms/placeholder.less, line 6