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HTML

              
                <div class="wrap">
  <header>
    <h1>
      Fixed width and 100% height sidebar, all fluid
    </h1>
  </header>
  <section class="cf">
    <div class="article-wrap">
      <article>
        <p>
          <a href="http://clubmate.fi/100-height-columns-fixed-width-sidebar-pure-css-solutions-to-commons-fluid-layout-problems">You may wanna see this blogpost. </a>
          The sidebar stays fixed width, the margins stay fixed width and it's still fluid. Boom! 
        </p>
        <p>
          You can have as many of these a you like
        </p>
        <p> 
          Donec sed odio dui. Cras mattis consectetur purus sit amet fermentum. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.
        </p>           
      </article>
      <article>
        <p>
          Cras mattis consectetur purus sit amet fermentum. Maecenas sed diam eget risus varius blandit sit amet non magna. Nulla vitae elit libero, a pharetra augue. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.
        </p>
        <p> 
          Donec sed odio dui. Cras mattis consectetur purus sit amet fermentum. Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Nullam id dolor id nibh ultricies vehicula ut id elit.
        </p>
      </article>
      <article class="last">
        <p>
          Cras mattis consectetur purus sit amet fermentum. Maecenas sed diam eget risus varius blandit sit amet non magna. Nulla vitae elit libero, a pharetra augue. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.
        </p>
        <p> 
          Donec sed odio dui. Cras mattis consectetur purus sit amet fermentum. Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Nullam id dolor id nibh ultricies vehicula ut id elit.
        </p>
      </article>
    </div>
    <aside class="sidebar cf">
      <h2>Sidebar</h2>
      <ul>
        <li>The sidebar</li>
        <li>
          is not 
        </li>
        <li>
          positioned absolutely
        </li>
        <li>
          so it has a height
        </li>
        <li>
          and is pushing 
        </li>
        <li>
          the <code>section</code> down
        </li>
        <li>
          as the content increses
        </li>
        <li>
          in it.
        </li>
        <li>Lorem.</li>
        <li>Cum.</li>
        <li>Enim!</li>
        <li>Reiciendis!</li>
        <li>Distinctio.</li>
        <li>Iste!</li>
        <li>Voluptates.</li>
        <li>Accusantium.</li>
        <li>Similique!</li>
        <li>Ullam.</li>
        <li>Ullam.</li>
        <li>Similique.</li>
        <li>Ut.</li>
        <li>Maiores.</li>
        <li>Voluptatem.</li>
        <li>Iusto.</li>
        <li>Fugiat.</li>
        <li>Quidem!</li>
        <li>Sed.</li>
        <li>Doloribus.</li>
      </ul>
    </aside>
  </section>
</div>
              
            
!

CSS

              
                @import "compass/css3";

// Vars
$sidebar-width: 200px;
$box-color: Pink;

// Cheese starts here
article,
section,
aside {
  box-sizing: border-box;
}
section {
  border-bottom: 20px solid $box-color;
  padding: 20px;
  background: $box-color;
  overflow: hidden;
}
.article-wrap {
  margin: 0 $sidebar-width 0 0;
}
article,
.sidebar {
  padding: 15px;
}
article {
  background: LightGoldenRodYellow;
  border-color: $box-color;
  border-style: solid;
  border-width: 0 20px 0 0;
  float: left;
  width: 33.33%;
}
.sidebar {
  background: Aquamarine;
  // Needs to be floated to have height, not absolutely positioned
  float: right;
  margin-bottom: -5000px; // 100% column height trick
  padding-bottom: 5000px; // 100% column height trick
  width: $sidebar-width;
}

// Style / Reset, ignore
body {
  padding: 20px;
}
h1,
h2,
p {
  margin: 0 0 20px 0;
}
h1 {
  font-size: 25px;
  a {
    color: #333;
  }
}
h2 {
  font-size: 20px;
}
ul {
  padding-left: 20px;
}
// Clrearfix
.cf {
  &:after {
    content: "";
    display: table;
    clear: both;
  }
}
              
            
!

JS

              
                
              
            
!
999px

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