Bootstrap Skeleton

This is a simple Bootstrap skeleton. You can fork it to get a ready to use Bootstrap fiddle.

HTML

<link rel="stylesheet" href="http://getbootstrap.com/dist/css/bootstrap.css">
<script src="http://getbootstrap.com/dist/js/bootstrap.js"></script>
<div>
  Example1:
</div>

<div class="container-fluid">
  <div class="col-xs-4 panel" style="background: red">
    COL1
  </div>
  <div class="col-xs-4 panel" style="background: yellow">
    COL2
  </div>
  <div class="col-xs-4 panel" style="background: blue">
    COL3
  </div>
  <div class="col-xs-4 panel" style="background: green">
    COL4
  </div>
  <div class="col-xs-4 panel" style="background: purple">
    COL5
    <br/>COL5
    <br/>COL5
  </div>
  <div class="col-xs-4 panel" style="background: pink">
    COL6
  </div>
  <div class="col-xs-4 panel" style="background: brown">
    COL7
  </div>
  <div class="col-xs-4 panel" style="background: orange">
    COL8
  </div>
  <div class="col-xs-4 panel" style="background: gray">
    COL9
  </div>
</div>

<div>
  Example 1 with clearfix (still no good):
</div>
<div class="container-fluid">
  <div class="col-xs-4 panel" style="background: red">
    COL1
  </div>
  <div class="col-xs-4 panel" style="background: yellow">
    COL2
  </div>
  <div class="col-xs-4 panel" style="background: blue">
    COL3
  </div>
  <div class="clearfix visible-xs"></div>
  <div class="col-xs-4 panel" style="background: green">
    COL4
  </div>
  <div class="col-xs-4 panel" style="background: purple">
    COL5
    <br/>COL5
    <br/>COL5
  </div>
  <div class="col-xs-4 panel" style="background: pink">
    COL6
  </div>
  <div class="clearfix visible-xs"></div>
  <div class="col-xs-4 panel" style="background: brown">
    COL7
  </div>
  <div class="col-xs-4 panel" style="background: orange">
    COL8
  </div>
  <div class="col-xs-4 panel" style="background: gray">
    COL9
  </div>
</div>

<div>
  Example2:
</div>

<div class="container-fluid">
  <div class="col-xs-4 panel" style="background: red">
    COL1
    <br/>COL1
  </div>
  <div class="col-xs-4 panel" style="background: yellow">
   ...

CSS

.col-xs-4 {
  border: 1px solid black;
}

.panel {
  margin-top: 0px;
  margin-bottom: 0px;
  margin-left: 0px;
  margin-right: 0px;
}