Firefox coumn-count list issue

by Jacksoncds

HTML

<ol class="list">
  <li>Test 1
    <span class="close">&times;</span>
  </li>
  <li>Test 2
    <span class="close">&times;</span>
  </li>
  <li>Test 3
    <span class="close">&times;</span>
  </li>
  <li>Test 4
    <span class="close">&times;</span>
  </li>
  <li>Test 5
    <span class="close">&times;</span>
  </li>
</ol>

CSS

.list {
  column-count: 2;
  column-gap:60px;
}

.close {
  float: right;
}